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TI-2026-82259 Aliases CVE-2026-21157GHSA-pw33-6fpc-cwfm

Samsung Bixby flaw lets local attackers launch arbitrary activities

Priority LOW 37CWE-20Published · Updated

Key facts

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

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

Summary

Samsung Bixby versions prior to 4.0.85.6 contain improper input validation (CWE-20). A privileged local attacker can use this flaw to launch arbitrary activities, with high impact on confidentiality and integrity.

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

Description from the CNA

Improper input validation in Bixby prior to version 4.0.85.6 allows privileged local attackers to launch arbitrary activity.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00106 1st percentileScored 2026-11-07
Fix Fixed Bixby (Samsung Mobile): 4.0.85.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
SamsungBixby—4.0.85.6Patch availableCNA
  • Bixby VendorSamsung Affected — Fixed in 4.0.85.6 Patch available CNA

Remediation

Update Samsung Bixby to version 4.0.85.6, which fixes this issue.

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

  • Fix · CNA Bixby (Samsung Mobile) Fixed in 4.0.85.6

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-21157
  2. 2026-10-29 Alias added: GHSA-pw33-6fpc-cwfm
  3. 2026-10-29 Weakness changed · CISA ADP
  4. 2026-10-29 CISA SSVC decision points changed
  5. 2026-10-29 Priority changed: MEDIUM → LOW
  6. 2026-10-30 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