CVE-2026-21088: Input Validation
Published Sep 9, 2026
·Updated
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.
Affected Software
1 affected component
libsubextractor.so
Event History
Sep 9, 2026
CVE Published
via MITRE·04:47 AM
Data Sourced
via MITRE·04:47 AM
DescriptionWeakness
Frequently Asked Questions
1
What level of access does an attacker need to exploit this issue?
The issue is described as exploitable by a local attacker, so the attacker needs local access or the ability to execute code in the affected environment.
2
Which releases are affected?
Versions of libsubextractor.so prior to SMR Sep-2026 Release 1 are affected.