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TI-2026-83993 Aliases CVE-2026-58828GHSA-fwfr-77w8-rqjw

Use-after-free in Android kernel base.c enables local escalation

Priority LOW 38CWE-416Published · Updated

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-416 and the CVSS impact.

Summary

Google Android is affected through its kernel, where multiple functions in base.c contain a race condition. The race leads to a use-after-free (CWE-416), which lets a local attacker escalate privileges without additional execution privileges or user interaction. The CVSS 3.1 base score is 8.4 (HIGH).

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

In multiple functions of base.c, there is a possible use-after-free due to a race condition. 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

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00179 7th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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
GoogleAndroidAndroid kernel—No fix listedCNA
  • Android VendorGoogle Affected Android kernel Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:o:google:android:*:*:*:*:*:*:*:*——Google
  • cpe:2.3:o:google:android:*:*:*:*:*:*:*:* Versions — — ·Google

Remediation

The sources list no fixed version for Android.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Timeline

  1. 2026-11-02 Threatist record created from CVE-2026-58828
  2. 2026-11-02 CVSS score added · CISA ADP
  3. 2026-11-02 Weakness changed · CISA ADP
  4. 2026-11-02 CISA SSVC decision points changed
  5. 2026-11-02 Alias added: GHSA-fwfr-77w8-rqjw
  6. 2026-11-03 CISA SSVC decision points changed

References

Other 5

  • 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
See all 17247 →

Sources

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