CVE-2026-42170

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-08-08 Modified: 2026-11-04 First seen: 2026-11-04 Status: active

Attack Surface

Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: High
A: High

Description

A heap-based buffer overflow vulnerability exists in the GIMP DDS (DirectDraw Surface) file parser. When a crafted DDS file declares a D3D9 pixel format but sets a lower bits-per-pixel (bpp) value in the header, the loader allocates an undersized heap buffer. Subsequent pixel data consumption at the real format's stride causes a write past the heap buffer boundary, leading to heap metadata corruption and potential code execution.

Affected Software (4)

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2461726
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

41 / 100
✓ No authentication
✓ Low complexity

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.19%
Raw Score 0.001920
Percentile 8.9%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00192
2026-11-13
0.00192
2026-11-12
0.00192
2026-11-10
0.00192
2026-11-09
0.00192
2026-11-08
0.00192
2026-11-07
0.00192
2026-11-06
0.00192
2026-11-05
0.00192
2026-11-04
0.00192

Intelligence Sources

mitre ref →
nvd ref →