Improper access control in Samsung Internet exposes sensitive information
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-284.
Summary
Samsung Internet before version 30.0.5.6 has an improper access control flaw (CWE-284) that lets a local attacker access sensitive information. The attacker needs only local access to the device and no user interaction or privileges.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Improper access control in Samsung Internet prior to version 30.0.5.6 allows local attackers to access sensitive information.
Why it matters now
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
Remediation
Update Samsung Internet to version 30.0.5.6 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Samsung Internet (Samsung Mobile) Fixed in 30.0.5.6
Timeline
- 2026-10-12 Threatist record created from CVE-2026-21135
- 2026-10-12 Alias added: GHSA-9wh2-hfq2-27w2
- 2026-10-12 Priority changed: MEDIUM → LOW
- 2026-10-16 Weakness changed · CISA ADP
- 2026-10-16 CISA SSVC decision points changed
More Samsung vulnerabilities
- 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
Sources
- CVE-2026-21135 · CVE Program
- CVE-2026-21135 · NVD
- FIRST EPSS
- GHSA-9wh2-hfq2-27w2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences