Advisory Details

September 24th, 2025

GIMP HDR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

CVE ID	CVE-2025-10921
CVSS SCORE	7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS	GIMP
AFFECTED PRODUCTS	GIMP
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of HDR files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
ADDITIONAL DETAILS	GIMP has issued an update to correct this vulnerability. More details can be found at: https://gitlab.gnome.org/GNOME/gegl/-/commit/0e68b7471dabf2800d780819c19bd5e6462f565f
DISCLOSURE TIMELINE	2025-09-02 - Vulnerability reported to vendor 2025-09-24 - Coordinated public release of advisory 2025-09-24 - Advisory Updated
CREDIT	MICHAEL RANDRIANANTENAINA [https://elkamika.blogspot.com/]

BACK TO ADVISORIES