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PatchSiren cyber security CVE debrief

CVE-2026-56988 Google CVE debrief

A use-after-free vulnerability exists in multiple functions of bluetooth_cco.cc due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. The vulnerability affects Android systems, particularly those with System execution privileges. System administrators and security teams should assess exposure and prioritize patching. The CVE record and NVD entry provide details on the vulnerability, including its CVSS score and vector.

Vendor
Google
Product
Android
CVSS
MEDIUM 6.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-15
Original CVE updated
2026-09-18
Advisory published
2026-09-15
Advisory updated
2026-09-18

Who should care

System administrators and security teams responsible for managing Android systems, especially those with System execution privileges, should assess exposure and prioritize patching.

Why it matters

CVE-2026-56988 is a use-after-free vulnerability in bluetooth_cco.cc that allows local escalation of privilege with System execution privileges. System administrators and security teams should prioritize verifying and applying patches for affected Android systems.

  • Local escalation of privilege with System execution privileges
  • Potential for unauthorized access and data breaches
  • Need for patching and configuration reviews

Technical summary

A use-after-free vulnerability exists in multiple functions of bluetooth_cco.cc due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. The vulnerability affects Android systems, particularly those with System execution privileges. The issue requires patching and configuration reviews to mitigate potential unauthorized access and data breaches.

Defensive priority

System administrators and security teams should prioritize verifying and applying patches for affected Android systems, especially those with System execution privileges.

Recommended defensive actions

  • Verify and apply patches for affected Android systems
  • Review system configurations and ensure System execution privileges are properly managed
  • Monitor system logs for potential exploitation attempts

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its CVSS score and vector. A vendor advisory from Google is also available.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-56988 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-56988

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-56988 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-56988

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.