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TI-2026-70848 Aliases CVE-2026-21126GHSA-2hxp-582q-c265

Samsung Mobile Devices: out-of-bounds write in cover image handling

Priority LOW 29Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Samsung Mobile Devices prior to the SMR Oct-2026 Release 1 are affected. Improper input validation when getting a cover image in libsimba.heifdec.media.samsung.so lets a local attacker write out-of-bounds memory. The attacker needs no privileges and no user interaction, and the CVSS 4.0 vector rates the impact to integrity as high.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00119 1st percentileScored 2026-11-07
Fix Fixed Samsung Mobile Devices (Samsung Mobile): SMR Oct-2026 Release in Android 14, 15, 16 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SamsungSamsung Mobile Devices—SMR Oct-2026 Release in Android 14, 15, 16, 17Patch availableCNA
  • Samsung Mobile Devices VendorSamsung Affected — Fixed in SMR Oct-2026 Release in Android 14, 15, 16, 17 Patch available CNA

Remediation

Samsung fixed this in the SMR Oct-2026 Release for Android 14, 15, 16 and 17.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Samsung Mobile Devices (Samsung Mobile) Fixed in SMR Oct-2026 Release in Android 14, 15, 16, 17

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-21126
  2. 2026-10-12 Alias added: GHSA-2hxp-582q-c265
  3. 2026-10-12 Priority changed: MEDIUM → LOW
  4. 2026-10-16 CISA SSVC decision points changed

References

Other 1

  • TI-2025-15039 Out-of-bounds write in Samsung Mobile Devices KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-15038 Out-of-bounds write in Samsung Mobile Devices KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-04133 Path traversal in Samsung MagicINFO 9 Server KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-06858 Path traversal in Samsung MagicINFO 9 Server KEVCVSS 3.1CRITICAL 9.8
  • TI-2016-00916 Integer overflow in Adobe Flash Player before 18.0.0.333 and 19.x through 21.x before… KEVCVSS 3.1HIGH 8.8
  • TI-2022-06595 An improper check or handling of exceptional conditions in NPU driver prior to SMR… KEVCVSS 3.1HIGH 7.8
See all 2043 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences