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CVE-2026-78465· NVD / CVE Program· CNA redhat

Gimp: integer overflow in pcx loader (planes=4) leads to heap overflow on 32-bit

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.

HighCVSS 7.0 · v3.1—No exploit Fix available
Published
Aug 24, 2026
Updated
Sep 1, 2026
EPSS
0.3% · 18th percentile
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Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
7.0
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
gimpgimp

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • gimp gimp3.0.0 and later · up to 3.2.4 inclusive
  • gimp gimp3.3.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • GNOME GIMP

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 8

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 9

    • all versionsunknown

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12gimpall versions—
Debian:13gimpbefore 3.0.4-3+deb13u113.0.4-3+deb13u11
Debian:14gimpbefore 3.2.6-13.2.6-1
openSUSE:Leap 16.0gimpbefore 3.0.8-bp160.9.13.0.8-bp160.9.1
openSUSE:Tumbleweedgimpbefore 3.2.6-1.13.2.6-1.1
SUSE:Linux Enterprise Module for Package Hub 15 SP7gimpbefore 2.10.30-150400.3.74.12.10.30-150400.3.74.1

Same product

gimp: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-44443GIMP PSP File Parsing Integer Overflow Remote Code Execution Vulnerability
    59Plan
  • CVE-2012-2763Buffer overflow in the readstr_upto function in plug-ins/script-fu/tinyscheme/scheme.c in GIMP 2.6.12 and earlier, and possibly 2.6.13, allo
    55Plan
  • CVE-2023-44442GIMP PSD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
    49Plan
  • CVE-2023-44444GIMP PSP File Parsing Off-By-One Remote Code Execution Vulnerability
    48Plan
  • CVE-2025-5473GIMP ICO File Parsing Integer Overflow Remote Code Execution Vulnerability
    42Plan
  • CVE-2009-3909Integer 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 arb
    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:gimp3.0.4-3+deb13u11 · Debian:13Package registry (OSV)
openSUSE:gimp3.2.6-1.1 · openSUSE:TumbleweedPackage registry (OSV)
SUSE:gimp2.10.30-150400.3.74.1 · SUSE:Linux Enterprise Module for Package Hub 15 SP7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-5473444 days apartGIMP ICO File Parsing Integer Overflow Remote Code Execution Vulnerability
    42Plan
  • CVE-2025-2760488 days apartGIMP XWD File Parsing Integer Overflow Remote Code Execution Vulnerability
    37Monitor
  • CVE-2026-183004 days apartGIMP HDR File Parsing Integer Overflow Remote Code Execution Vulnerability
    31Monitor
  • CVE-2026-183014 days apartGIMP PSD File Parsing Integer Overflow Remote Code Execution Vulnerability
    31Monitor
  • CVE-2026-183044 days apartGIMP TIF File Parsing Integer Overflow Remote Code Execution Vulnerability
    31Monitor
  • CVE-2026-183054 days apartGIMP TIF File Parsing Integer Overflow Remote Code Execution Vulnerability
    31Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-190 · Integer Overflow or Wraparound

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records