CVE-2026-66757 | A flaw was found in the file-sgi plugin in GIMP. When proces… | CVSS 5.5 MEDIUM

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.

Metadata

CVE ID: CVE-2026-66757
State: PUBLISHED
Assigner: redhat
Reserved: 2026-07-27 17:24 UTC
Published: 2026-07-27 19:07 UTC
Last updated: 2026-07-27 20:21 UTC
Primary CWE: CWE-190
Integer Overflow or Wraparound
Vendor / Product: Red Hat / Red Hat Enterprise Linux 6
Sources: cve.org · NVD

Severity & Metrics

5.5 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: no
Tech. Impact: partial

Affected products (4)

Vendor	Product	Platform	Versions
Red Hat	Red Hat Enterprise Linux 6	—	—
Red Hat	Red Hat Enterprise Linux 7	—	—
Red Hat	Red Hat Enterprise Linux 8	—	—
Red Hat	Red Hat Enterprise Linux 9	—	—

Weakness (CWE)

CWE	Source	Description
CWE-190	cna	Integer Overflow or Wraparound

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.5	MEDIUM	3.1	cna	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References (3)