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TI-2025-00891 Aliases CVE-2025-1052GHSA-2rq4-xq7w-xw4p

Heap-based buffer overflow in Mintty

Priority MEDIUM 42CWE-122Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

Mintty Sixel Image Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Mintty. 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 sixel images. 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 user. Was ZDI-CAN-23382.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0097 62nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MinttyMintty3.7.1 (Git-2.45.1-64-bit.exe)—No fix listedCNA
  • Mintty VendorMintty Affected 3.7.1 (Git-2.45.1-64-bit.exe) Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mintty_project:mintty:*:*:*:*:*:*:*:*before 3.7.5VulnerableMintty Project
  • cpe:2.3:a:mintty_project:mintty:*:*:*:*:*:*:*:* Versions before 3.7.5 Vulnerable ·Mintty Project

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-1052
  2. 2026-10-03 Alias added: GHSA-2rq4-xq7w-xw4p

References

Advisory 1

  • TI-2024-30372 ZDI-CAN-24744: Mintty Path Conversion Improper Input Validation Information Disclosure Vulnerability CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences