Advisory Details

October 27th, 2025

Krita TGA File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-25-972
ZDI-CAN-27830

CVE ID CVE-2025-59820
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Krita
AFFECTED PRODUCTS Krita
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Krita. 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 TGA 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 Krita has issued an update to correct this vulnerability. More details can be found at:
https://kde.org/info/security/advisory-20250929-1.txt
DISCLOSURE TIMELINE
  • 2025-09-05 - Vulnerability reported to vendor
  • 2025-10-27 - Coordinated public release of advisory
  • 2025-10-27 - Advisory Updated
CREDIT MICHAEL RANDRIANANTENAINA [https://elkamika.blogspot.com/]
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