← Vulnerability feed

Vulnerability record · CVE-2026-78465 · published 24 August 2026

CVE-2026-78465: Gimp integer overflow vulnerability

Gimp · Gimp

A flaw was found in the file-pcx plugin in GIMP, affecting 32-bit builds only. When processing a PCX image file, the plugin calculates memory allocation sizes based on the image dimensions and the number of color planes. If a crafted file sets the number of planes to 4 alongside sufficiently large dimensions, the calculation exceeds the 32-bit integer limit and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when the plugin subsequently writes image data into the undersized buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.

7.0 CVSS 3.1 High EPSS 0.28% · top 81.6% CWE-190 · Integer overflow
7.0CVSS 3.1 base score
0.28%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
1 Sep 2026Last modified by NVD

Description

A flaw was found in the file-pcx plugin in GIMP, affecting 32-bit builds only. When processing a PCX image file, the plugin calculates memory allocation sizes based on the image dimensions and the number of color planes. If a crafted file sets the number of planes to 4 alongside sufficiently large dimensions, the calculation exceeds the 32-bit integer limit and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when the plugin subsequently writes image data into the undersized buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/security/cve/CVE-2026-78465 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2522057 Issue TrackingVendor Advisory
https://gitlab.gnome.org/GNOME/gimp/-/work_items/16578 Issue TrackingVendor AdvisoryExploitMitigation
https://gitlab.gnome.org/GNOME/gimp/-/work_items/16578 Issue TrackingVendor AdvisoryExploitMitigation

Track CVE-2026-78465 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2026-59090Gimp vulnerabilityA flaw was found in GIMP's PSD file format plugin. This vulnerability, an unsigned integer underflow in the `block_rem` variable, occurs when a user …EPSS 0.61%9.3CVE-2010-4541Gimp out-of-bounds write vulnerabilityStack-based buffer overflow in the loadit function in plug-ins/common/sphere-designer.c in the SPHERE DESIGNER plugin in GIMP 2.6.11 allows user-assi…EPSS 6.8%9.3CVE-2009-3909Gimp integer overflow vulnerabilityInteger overflow in the read_channel_data function in plug-ins/file-psd/psd-load.c in GIMP 2.6.7 might allow remote attackers to execute arbitrary co…EPSS 8.7%9.3CVE-2009-1570Gimp integer overflow vulnerabilityInteger overflow in the ReadImage function in plug-ins/file-bmp/bmp-read.c in GIMP 2.6.7 might allow remote attackers to execute arbitrary code via a…EPSS 8.0%9.3CVE-2009-0723Gimp integer overflow vulnerabilityMultiple integer overflows in LittleCMS (aka lcms or liblcms) before 1.18beta2, as used in Firefox 3.1beta, OpenJDK, and GIMP, allow context-dependen…EPSS 5.0%9.3CVE-2009-0733Gimp out-of-bounds write vulnerabilityMultiple stack-based buffer overflows in the ReadSetOfCurves function in LittleCMS (aka lcms or liblcms) before 1.18beta2, as used in Firefox 3.1beta…EPSS 5.5%9.1CVE-2018-12713Gimp vulnerabilityGIMP through 2.10.2 makes g_get_tmp_dir calls to establish temporary filenames, which may result in a filename that already exists, as demonstrated b…EPSS 1.9%8.8CVE-2026-2044Gimp use of uninitialized resource vulnerabilityGIMP PGM File Parsing Uninitialized Memory Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code …EPSS 0.99%

Source: NIST National Vulnerability Database (record CVE-2026-78465), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.