Detections
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Echo: graphicsmagick: security update to 1.4+really1.3.45+hg17696-1+e1

high Tenable Cloud Security Plugin ID 457766

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - A heap out-of-bounds write exists in the Photo CD (PCD) decoder of GraphicsMagick. In DecodeImage()
 (coders/pcd.c), the Huffman delta loop advances its output pointer with q++ after every decoded delta and
 never checks it against the end of the heap-allocated luma/chroma plane buffers. The pointer is
 repositioned only when a sync marker introduces a new plane/row; between sync markers the run length is
 bounded solely by the input. A crafted PCD file that positions the pointer near the end of a plane and
 then supplies a long run of deltas with no intervening sync therefore walks the pointer past the end of
 the allocation and writes through it. Processing an untrusted PCD file — for example with gm convert or gm
 identify, or through any application linked against libGraphicsMagick — can corrupt heap memory beyond the
 buffers. (CVE-2026-77118)

Solution

Update the graphicsmagick library and its related packages to version 1.4+really1.3.45+hg17696-1+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-77118

Plugin Details

Severity: High

ID: 457766

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.5

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2026-77118

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.4

Threat Score: 5.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/21/2026

Vulnerability Publication Date: 7/20/2026

Reference Information

CVE: CVE-2026-77118