CVE-2026-21089CWE-20

CVE-2026-21089

High · published September 9, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
1.0
In the wild
Unconfirmed
What it is

Improper input validation in removing style tag in libsubextractor.so prior to SMR Sep-2026 Release 1 allows local attackers to write out-of-bounds memory.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
6.9 · 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
EPSS
0.00105 · 1.0th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-09-09T09:17Z
Affected products (95)
ProductVersionsFixed in
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References (1)
https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=09 · [email protected]
EPSS history
Timeline
  • 10 SEP 03:16Z
    EPSS moved — → 0%
    epss
  • 09 SEP 04:47Z
    Improper input validation in removing style tag in libsubextractor.so prior to SMR Sep-2026 Release 1 allows local attackers to write out-of-bounds memory
    cvelistv5