CVE-2026-21085CWE-787

CVE-2026-21085

Medium · published September 9, 2026

CVSS v3.1
6.7
EPSS
0%
Percentile
1.3
In the wild
Unconfirmed
What it is

Out-of-bounds write in Keymaster trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to write out-of-bounds memory.

The record
Technical detail
CVSS v3.1
6.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.4 · CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00111 · 1.3th percentile
Weakness
CWE-787 · Out-of-bounds Write
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
    Out-of-bounds write in Keymaster trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to write out-of-bounds memory
    cvelistv5