ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.

The remote Debian 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4680 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4680-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                   Bastien Roucaris     July 13, 2026                                 https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : imagemagick     Version        : 8:6.9.11.60+dfsg-1.3+deb11u15 8:6.9.11.60+dfsg-1.6+deb12u12     CVE ID         : CVE-2026-53466 CVE-2026-53467 CVE-2026-55577 CVE-2026-55594                      CVE-2026-55595 CVE-2026-55597 CVE-2026-55628 CVE-2026-56361                      CVE-2026-56363 CVE-2026-56365 CVE-2026-56366 CVE-2026-56367                      CVE-2026-56368 CVE-2026-56370 CVE-2026-56371 CVE-2026-56373                      CVE-2026-56376 CVE-2026-56377 CVE-2026-56378

    Multiple security vulnerabilities were discovered in imagemagick, a     software suite used for editing and manipulating digital images, which     could lead to denial of service, information disclosure or potentially     arbitrary code execution if malformed images are processed.

    For Debian 11 bullseye, these problems have been fixed in version     8:6.9.11.60+dfsg-1.3+deb11u15.

    For Debian 12 bookworm, these problems have been fixed in version     8:6.9.11.60+dfsg-1.6+deb12u12

    We recommend that you upgrade your imagemagick packages.

    For the detailed security status of imagemagick please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/imagemagick

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of ImageMagick installed on the remote host is prior to 6.9.10.97-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3786 advisory.

    ImageMagick before 7.1.2-15 contains a memory leak vulnerability in multiple coders that write raw pixel     data where allocated objects are not properly freed. Attackers can trigger this leak by processing     specially crafted images, causing memory exhaustion and denial of service. (CVE-2026-56368)

    ImageMagick before 7.1.2-19 contains an out-of-bounds access vulnerability in ConnectedComponentsImage()     when processing connected-components artifacts with invalid indices. Attackers can trigger access     violations by specifying malformed connected-components definitions via CLI, causing denial of service or     potential code execution. (CVE-2026-56370)

    ImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing TXT files     with texture attributes: the texture object allocated via ReadImage is not released when GetTypeMetrics     fails, leaking memory each time a crafted TXT file with a texture attribute is processed. (CVE-2026-56371)

    ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD     coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image     decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.
    (CVE-2026-56378)

    ImageMagick before 7.1.2-15 and 6.9.13-40 contains a command injection vulnerability in the SVG decoder     that allows attackers to inject arbitrary MVG drawing commands. Attackers can craft malicious SVG files     with injected Magick Vector Graphics commands that execute during rendering. (CVE-2026-56379)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6383 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6383-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     July 07, 2026                         https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : imagemagick     CVE ID         : CVE-2026-53466 CVE-2026-53467 CVE-2026-55577 CVE-2026-55594                      CVE-2026-55597 CVE-2026-55628 CVE-2026-56361 CVE-2026-56363                      CVE-2026-56364 CVE-2026-56365 CVE-2026-56367 CVE-2026-56368                      CVE-2026-56370 CVE-2026-56371 CVE-2026-56376 CVE-2026-56377                      CVE-2026-56378

    Multiple security vulnerabilities were discovered in imagemagick, a     software suite used for editing and manipulating digital images, which     could lead to denial of service, information disclosure or potentially     arbitrary code execution if malformed images are processed.

    For the stable distribution (trixie), these problems have been fixed in     version 8:7.1.1.43+dfsg1-1+deb13u11.

    We recommend that you upgrade your imagemagick packages.

    For the detailed security status of imagemagick please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/imagemagick

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD     coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image     decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.
    (CVE-2026-56378)

Note that Nessus relies on the presence of the package as reported by the vendor.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1478 advisory.

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a heap information disclosure vulnerability exists in ImageMagick's PSD     (Adobe Photoshop) format handler. When processing a maliciously crafted PSD file containing ZIP-compressed     layer data that decompresses to less than the expected size, uninitialized heap memory is leaked into the     output image. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-24481)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, Magick fails to check for multi-layer nested mvg conversions to svg,     leading to DoS. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-24484)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, when a PCD file does not contain a valid Sync marker, the DecodeImage()     function becomes trapped in an infinite loop while searching for the Sync marker, causing the program to     become unresponsive and continuously consume CPU resources, ultimately leading to system resource     exhaustion and denial of service. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-24485)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability exists in multiple raw image format     handles. The vulnerability occurs when processing images with -extract dimensions larger than -size     dimensions, causing out-of-bounds memory reads from a heap-allocated buffer. Versions 7.1.2-15 and     6.9.13-40 contain a patch. (CVE-2026-25576)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, memory leak exists in `coders/msl.c`. In the `WriteMSLImage` function of     the `msl.c` file, resources are allocated. But the function returns early without releasing these     allocated resources. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-25638)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, in `ReadSFWImage()` (`coders/sfw.c`), when temporary file creation fails,     `read_info` is destroyed before its `filename` member is accessed, causing a NULL pointer dereference and     crash. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-25795)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, in `ReadSTEGANOImage()` (`coders/stegano.c`), the `watermark` Image     object is not freed on three early-return paths, resulting in a definite memory leak (~13.5KB+ per     invocation) that can be exploited for denial of service. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
    (CVE-2026-25796)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, the ps coders, responsible for writing PostScript files, fails to     sanitize the input before writing it into the PostScript header.  An attacker can provide a malicous file     and inject arbitrary PostScript code. When the resulting file is processed by a printer or a viewer (like     Ghostscript), the injected code is interpreted and executed. The html encoder does not properly escape     strings that are written to in the html document. An attacker can provide a malicious file and injection     arbitrary html code. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-25797)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a NULL pointer dereference in ClonePixelCacheRepository allows a remote     attacker to crash any application linked against ImageMagick by supplying a crafted image file, resulting     in denial of service. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-25798)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a logic error in YUV sampling factor validation allows an invalid     sampling factor to bypass checks and trigger a division-by-zero during image loading, resulting in a     reliable denial-of-service. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-25799)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, the UIL and XPM image encoder do not validate the pixel index value     returned by `GetPixelIndex()` before using it as an array subscript. In HDRI builds, `Quantum` is a     floating-point type, so pixel index values can be negative. An attacker can craft an image with negative     pixel index values to trigger a global buffer overflow read during conversion, leading to information     disclosure or a process crash. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-25898)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, ImageMagick's path security policy is enforced on the raw filename string     before the filesystem resolves it. As a result, a policy rule such as /etc/* can be bypassed by a path     traversal. The OS resolves the traversal and opens the sensitive file, but the policy matcher only sees     the unnormalized path and therefore allows the read. This enables local file disclosure (LFI) even when     policy-secure.xml is applied. Actions to prevent reading from files have been taken in versions .7.1.2-15     and 6.9.13-40 But it make sure writing is also not possible the following should be added to one's policy.
    This will also be included in ImageMagick's more secure policies by default. (CVE-2026-25965)

    ImageMagick is free and open-source software used for editing and manipulating digital images. The shipped     secure security policy includes a rule intended to prevent reading/writing from standard streams.
    However, ImageMagick also supports fd:<n> pseudo-filenames (e.g., fd:0, fd:1). Prior to versions 7.1.2-15     and 6.9.13-40, this path form is not blocked by the secure policy templates, and therefore bypasses the     protection goal of no stdin/stdout. Versions 7.1.2-15 and 6.9.13-40 contain a patch by including a     change to the more secure policies by default. As a workaround, add the change to one's security policy     manually. (CVE-2026-25966)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a stack buffer overflow occurs when processing the an attribute in msl.c.
    A long value overflows a fixed-size stack buffer, leading to memory corruption. Versions 7.1.2-15 and     6.9.13-40 contain a patch. (CVE-2026-25968)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a signed integer overflow vulnerability in ImageMagick's SIXEL decoder     allows an attacker to trigger memory corruption and denial of service when processing a maliciously     crafted SIXEL image file. The vulnerability occurs during buffer reallocation operations where pointer     arithmetic using signed 32-bit integers overflows. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
    (CVE-2026-25970)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, Magick fails to check for circular references between two MSLs, leading     to a stack overflow. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-25971)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a heap out-of-bounds read vulnerability exists in the `coders/dcm.c`     module. When processing DICOM files with a specific configuration, the decoder loop incorrectly reads     bytes per iteration. This causes the function to read past the end of the allocated buffer, potentially     leading to a Denial of Service (crash) or Information Disclosure (leaking heap memory into the image).
    Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-25982)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a crafted MSL script triggers a heap-use-after-free. The operation     element handler replaces and frees the image while the parser continues reading from it, leading to a UAF     in ReadBlobString during further parsing. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
    (CVE-2026-25983)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a crafted SVG file containing an malicious element causes ImageMagick to     attempt to allocate ~674 GB of memory, leading to an out-of-memory abort. Versions 7.1.2-15 and 6.9.13-40     contain a patch. (CVE-2026-25985)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a heap buffer overflow write vulnerability exists in ReadYUVImage()     (coders/yuv.c) when processing malicious YUV 4:2:2 (NoInterlace) images. The pixel-pair loop writes one     pixel beyond the allocated row buffer. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-25986)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability exists in the MAP image decoder     when processing crafted MAP files, potentially leading to crashes or unintended memory disclosure during     image decoding. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-25987)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, sometimes msl.c fails to update the stack index, so an image is stored in     the wrong slot and never freed on error, causing leaks. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
    (CVE-2026-25988)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a crafted SVG file can cause a denial of service. An off-by-one boundary     check (`>` instead of `>=`) that allows bypass the guard and reach an undefined `(size_t)` cast. Versions     7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-25989)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a crafted profile contain invalid IPTC data may cause an infinite loop     when writing it with `IPTCTEXT`. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-26066)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a `continue` statement in the JPEG extent binary search loop in the jpeg     encoder causes an infinite loop when writing persistently fails. An attacker can trigger a 100% CPU     consumption and process hang (Denial of Service) with a crafted image. Versions 7.1.2-15 and 6.9.13-40     contain a patch. (CVE-2026-26283)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, ImageMagick lacks proper boundary checking when processing Huffman-coded     data from PCD (Photo CD) files. The decoder contains an function that has an incorrect initialization that     could cause an out of bounds read. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-26284)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, the MSL interpreter crashes when processing a invalid `<map>` element     that causes it to use an image after it has been freed. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
    (CVE-2026-26983)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability occurs when processing an image     with small dimension using the `-wavelet-denoise` operator. Versions 7.1.2-15 and 6.9.13-40 contain a     patch. (CVE-2026-27798)

    ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to     versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability exists in the DJVU image format     handler. The vulnerability occurs due to integer truncation when calculating the stride (row size) for     pixel buffer allocation. The stride calculation overflows a 32-bit signed integer, resulting in an out-of-     bounds memory reads. Versions 7.1.2-15 and 6.9.13-40 contain a patch. (CVE-2026-27799)

    ImageMagick before 7.1.2-15 contains a memory leak vulnerability in multiple coders that write raw pixel     data where allocated objects are not properly freed. Attackers can trigger this leak by processing     specially crafted images, causing memory exhaustion and denial of service. (CVE-2026-56368)

    ImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing TXT files     with texture attributes: the texture object allocated via ReadImage is not released when GetTypeMetrics     fails, leaking memory each time a crafted TXT file with a texture attribute is processed. (CVE-2026-56371)

    ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD     coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image     decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.
    (CVE-2026-56378)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
326549	Debian dla-4680 : imagemagick - security update	Nessus	Debian Local Security Checks	Local	medium
325586	Amazon Linux 2 : ImageMagick, --advisory ALAS2-2026-3786 (ALAS-2026-3786)	Nessus	Amazon Linux Local Security Checks	Local	critical
325515	Debian dsa-6383 : imagemagick - security update	Nessus	Debian Local Security Checks	Local	medium
321880	Linux Distros Unpatched Vulnerability : CVE-2026-56378	Nessus	Misc.	Local	medium
304289	Amazon Linux 2023 : ImageMagick, ImageMagick-c++, ImageMagick-c++-devel (ALAS2023-2026-1478)	Nessus	Amazon Linux Local Security Checks	Local	medium

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CVE-2026-56378

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