CVE-2026-21088

HighCVSS 7.8/10Last modified Sep 10, 2026

Description

Improper input validation in loading a subtitle frame in libsubextractor.so prior to SMR Sep-2026 Release 1 allows local attackers to write out-of-bounds memory.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-20

Affected software

No affected versions have been published.

Timeline

Published
Sep 9, 2026
Last modified
Sep 10, 2026
NVD status
Analyzed

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CVE-2026-21088: High severity, CVSS 7.8 | Vulnix