CVE-2026-23512

HIGH SEVERITY

CVSS Score & Metrics

Base Score

8.6 / 10

Vector String

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

Vulnerability Description

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows execution of a malicious notepad.exe placed in the application's installation directory, leading to arbitrary code execution.

Vulnerability Details

Published Date

January 14, 2026

Last Modified

January 16, 2026

CWE ID

CWE-426

Source

NVD

External References

https://github.com/sumatrapdfreader/sumatrapdf/commit/2762e02a8cd7cb779c934a44257aac56ab7de673
https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-rqg5-gj63-x4mv

CVE-2026-23512

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

Discussion (0)

Add Comment