CVE-2026-21111CWE-787

CVE-2026-21111

published September 9, 2026

CVSS
6.9
EPSS
0%
Percentile
0.8
In the wild
Unconfirmed
What it is

Out-of-bounds write in libsthmbc.so prior to One UI 8.5 allows local attackers to write out-of-bounds memory.

The record
Technical detail
CVSS
6.9 · NONE
CVSS v4.0
6.9 · CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
EPSS
0.00099 · 0.8th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-09-09T09:17Z
References (1)
https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=09 · [email protected]
EPSS history
Timeline
  • 10 SEP 03:16Z
    EPSS moved — → 0%
    epss
  • 09 SEP 04:48Z
    Out-of-bounds write in libsthmbc.so prior to One UI 8.5 allows local attackers to write out-of-bounds memory
    cvelistv5