Poppler ia a library for rendering PDF files, and examining or modifying their structure. A use-after-free (write) vulnerability has been detected in versions Poppler prior to 25.10.0 within the StructTreeRoot class. The issue arises from the use of raw pointers to elements of a `std::vector`, which can lead to dangling pointers when the vector is resized. The vulnerability stems from the way that refToParentMap stores references to `std::vector` elements using raw pointers. These pointers may become invalid when the vector is resized. This vulnerability is a common security problem involving the use of raw pointers to `std::vectors`. Internally, `std::vector `stores its elements in a dynamically allocated array. When the array reaches its capacity and a new element is added, the vector reallocates a larger block of memory and moves all the existing elements to the new location. At this point if any pointers to elements are stored before a resize occurs, they become dangling pointers once the reallocation happens. Version 25.10.0 contains a patch for the issue.

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 / 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-7858-1 advisory.

    It was discovered that poppler incorrectly handled certain PDF files. An attacker could possibly use this     issue to cause a crash.

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

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

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-8b329c399b advisory.

    Backport fix for CVE-2025.52885.

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

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:3910-1 advisory.

    - CVE-2025-43718: fixed uncontrolled recursion in the regex-based metadata parser when processing     specially crafted PDF files (bsc#1250908)
     - CVE-2025-52885: improved pointer handling that could have led to dangling pointers when the vector is     resized (bsc#1251940)

Tenable has extracted the preceding description block directly from the SUSE 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 Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-591ef9306a advisory.

    Backport fix for CVE-2025.52885.

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

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:3900-1 advisory.

    - CVE-2025-43718: Fixed uncontrolled recursion in the regex-based metadata parser when processing     specially crafted PDF files allows for stack exhaustion and denial of service (bsc#1250908).
    - CVE-2025-52885: Fixed raw pointers can lead to dangling pointers when the vector is resized     (bsc#1251940).

Tenable has extracted the preceding description block directly from the SUSE 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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988622 advisory.

    Poppler ia a library for rendering PDF files, and examining or modifying their structure. A use-after-free     (write) vulnerability has been detected in versions Poppler prior to 25.10.0 within the StructTreeRoot     class. The issue arises from the use of raw pointers to elements of a `std::vector`, which can lead to     dangling pointers when the vector is resized. The vulnerability stems from the way that refToParentMap     stores references to `std::vector` elements using raw pointers. These pointers may become invalid when the     vector is resized. This vulnerability is a common security problem involving the use of raw pointers to     `std::vectors`. Internally, `std::vector `stores its elements in a dynamically allocated array. When the     array reaches its capacity and a new element is added, the vector reallocates a larger block of memory and     moves all the existing elements to the new location. At this point if any pointers to elements are stored     before a resize occurs, they become dangling pointers once the reallocation happens. Version 25.10.0     contains a patch for the issue.

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

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:3779-1 advisory.

    - CVE-2025-43718: fixed uncontrolled recursion in the regex-based metadata parser when processing     specially crafted PDF files (bsc#1250908)
      - CVE-2025-52885: improved pointer handling that could have led to dangling pointers when the vector is     resized (bsc#1251940)

Tenable has extracted the preceding description block directly from the SUSE 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 Poppler installed on the remote host is prior to 25.10.0. It is, therefore, affected by a vulnerability:

  - Poppler ia a library for rendering PDF files, and examining or modifying their structure. A use-after-free     (write) vulnerability has been detected in versions Poppler prior to 25.10.0 within the StructTreeRoot     class. The issue arises from the use of raw pointers to elements of a std::vector, which can lead to     dangling pointers when the vector is resized. The vulnerability stems from the way that refToParentMap     stores references to std::vector elements using raw pointers. These pointers may become invalid when     the vector is resized. This vulnerability is a common security problem involving the use of raw pointers     to std::vectors. Internally, std::vector stores its elements in a dynamically allocated array. When the     array reaches its capacity and a new element is added, the vector reallocates a larger block of memory     and moves all the existing elements to the new location. At this point if any pointers to elements are     stored before a resize occurs, they become dangling pointers once the reallocation happens. Version     25.10.0 contains a patch for the issue. (CVE-2025-52885)

Note that Nessus has not tested for this issue 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.

  - Poppler ia a library for rendering PDF files, and examining or modifying their structure. A use-after-free     (write) vulnerability has been detected in versions Poppler prior to 25.10.0 within the StructTreeRoot     class. The issue arises from the use of raw pointers to elements of a `std::vector`, which can lead to     dangling pointers when the vector is resized. The vulnerability stems from the way that refToParentMap     stores references to `std::vector` elements using raw pointers. These pointers may become invalid when the     vector is resized. This vulnerability is a common security problem involving the use of raw pointers to     `std::vectors`. Internally, `std::vector `stores its elements in a dynamically allocated array. When the     array reaches its capacity and a new element is added, the vector reallocates a larger block of memory and     moves all the existing elements to the new location. At this point if any pointers to elements are stored     before a resize occurs, they become dangling pointers once the reallocation happens. Version 25.10.0     contains a patch for the issue. (CVE-2025-52885)

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

ID	Name	Product	Family	Severity
274519	Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 / 25.10 : poppler vulnerability (USN-7858-1)	Nessus	Ubuntu Local Security Checks	high
274507	Fedora 43 : mingw-poppler (2025-8b329c399b)	Nessus	Fedora Local Security Checks	high
274427	SUSE SLED15 / SLES15 Security Update : poppler (SUSE-SU-2025:3910-1)	Nessus	SuSE Local Security Checks	high
274394	Fedora 42 : mingw-poppler (2025-591ef9306a)	Nessus	Fedora Local Security Checks	high
272150	SUSE SLES15 Security Update : poppler (SUSE-SU-2025:3900-1)	Nessus	SuSE Local Security Checks	high
272100	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: poppler (UTSA-2025-988622)	Nessus	Unity Linux Local Security Checks	high
271428	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : poppler (SUSE-SU-2025:3779-1)	Nessus	SuSE Local Security Checks	high
270703	Poppler < 25.10.0 Use-After-Free (GHSL-2025-042)	Nessus	MacOS X Local Security Checks	high
270275	Linux Distros Unpatched Vulnerability : CVE-2025-52885	Nessus	Misc.	high

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CVE-2025-52885

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