VULNERABILITY INTELLIGENCE

CVE-2026-66757

CVSS score5.5 MEDIUM
EPSS probability0.23%
CISA KEVNot currently listed
Published2026-07-27
Last modified2026-08-10
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Description

A flaw was found in the file-sgi plugin in GIMP. When processing an RLE-compressed SGI image, the plugin allocates memory for a row table. The image header dimensions (ysize and zsize) are read as 16-bit unsigned integers. If a crafted file sets both dimensions to their maximum value (65535), the multiplication ysize * zsize overflows the standard 32-bit int boundary before being passed to calloc. This integer overflow issue results in undefined behavior, aborting the plugin and causing a denial of service.

Weakness classification

  • CWE-190: Integer Overflow or Wraparound

Primary references