GIMP ICNS File Parser out-of-bounds write

Summaryinfo

A vulnerability classified as critical has been found in GIMP. This impacts an unknown function of the component ICNS File Parser. This manipulation causes out-of-bounds write. This vulnerability is tracked as CVE-2025-10920. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in GIMP (version now known). It has been declared as critical. Affected by this vulnerability is some unknown processing of the component ICNS File Parser. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

GIMP ICNS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. 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 ICNS files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27684.

It is possible to read the advisory at zerodayinitiative.com. This vulnerability is known as CVE-2025-10920. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/23/2025).

The vulnerability scanner Nessus provides a plugin with the ID 266027 (Debian dsa-6014 : gimp - security update), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (266027) and CERT Bund (WID-SEC-2025-2129). Be aware that VulDB is the high quality source for vulnerability data.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• RESF Rocky Linux
• Open Source GIMP

Productinfo

Type

• Image Processing Software

Name

• GIMP

License

• open-source

CPE 2.3info

• 🔒

CPE 2.2info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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