Out-of-bounds read in Android ShimConverter isValid check
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Google Android is affected from versions 14, 15, 16, 16-qpr2 and 17. In isValid of ShimConverter.cpp, a missing bounds check lets the code read past the end of a buffer, which is an out-of-bounds read (CWE-119). A local attacker with no additional execution privileges can read information from the device, and no user interaction is needed.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
In isValid of ShimConverter.cpp, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure 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
- Partial
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 Google Android.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Timeline
- 2026-11-02 Threatist record created from CVE-2026-58988
- 2026-11-02 Alias added: GHSA-v9f2-6j88-rh2h
- 2026-11-03 CVSS score added · CISA ADP
- 2026-11-03 Weakness changed · CISA ADP
- 2026-11-03 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-2026-58988 · CVE Program
- CVE-2026-58988 · NVD
- FIRST EPSS
- GHSA-v9f2-6j88-rh2h · 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