CVE-2026-21088

6.9 mediumEPSS 0.2%

Medium (6.9) in samsung android. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

6.9 medium

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N

CVSS 3.1

7.8 high

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2026-09-09
Modified: 2026-09-10
Record from: the NVD, synced 2026-10-19

Affected

samsung:android

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=09

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