CVE-2026-21126

CVE-2026-21126

published October 12, 2026

CVSS
6.9
EPSS
0%
Percentile
4.7
In the wild
Unconfirmed
What it is

Improper input validation in getting cover image in libsimba.heifdec.media.samsung.so prior to SMR Oct-2026 Release 1 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:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00159 · 4.7th percentile
Published
2026-10-12T09:17Z
References (1)
https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=10 · [email protected]
EPSS history
Timeline
  • 13 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 12 OCT 04:57Z
    Improper input validation in getting cover image in libsimba.heifdec.media.samsung.so prior to SMR Oct-2026 Release 1 allows local attackers to write…
    cvelistv5
  • 12 OCT 04:57Z
    Improper input validation in getting cover image in libsimba.heifdec.media.samsung.so prior to SMR Oct-2026 Release 1 allows local attackers to write…
    cvelistv5