CVE-2026-25961
- Source
- https://cve.org/CVERecord?id=CVE-2026-25961
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25961.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-25961
- Aliases
-
- GHSA-xpm2-rr5m-x96q
- Published
- 2026-02-09T21:34:05.203Z
- Modified
- 2026-02-22T08:02:29.378011Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- SumatraPDF Update MITM -> Arbitrary Code Execution
- Details
-
SumatraPDF is a multi-format reader for Windows. In 3.5.0 through 3.5.2, SumatraPDF's update mechanism disables TLS hostname verification (INTERNETFLAGIGNORECERTCN_INVALID) and executes installers without signature checks. A network attacker with any valid TLS certificate (e.g., Let's Encrypt) can intercept the update check request, inject a malicious installer URL, and achieve arbitrary code execution.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-295", "CWE-494" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25961.json" }- References