Out-of-bounds write in Android descramble enables local escalation
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
Google Android from 14 is affected, including versions 15, 16, 16-qpr2 and 17. In descramble of multiple files, improper casting causes an out-of-bounds write (CWE-787). A local user with no additional execution privileges can escalate privilege, and no user interaction is needed.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
In descramble of multiple files, there is a possible out-of-bounds write due to improper casting. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Why it matters now
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
Remediation
The sources list no fixed version for Android.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Timeline
- 2026-11-02 Threatist record created from CVE-2026-58879
- 2026-11-02 Alias added: GHSA-3mmp-62w6-34j5
- 2026-11-03 CVSS score added · CISA ADP
- 2026-11-03 Weakness changed · CISA ADP
- 2026-11-03 CISA SSVC decision points changed
- 2026-11-04 CISA SSVC decision points changed
References
More Google vulnerabilities
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
Sources
- CVE-2026-58879 · CVE Program
- CVE-2026-58879 · NVD
- FIRST EPSS
- GHSA-3mmp-62w6-34j5 · 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