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PatchSiren cyber security CVE debrief

CVE-2026-55318 Google CVE debrief

CVE-2026-55318 is a high-severity vulnerability in Google Android, potentially leading to remote code execution. Defenders should assess exposure, prioritize remediation, and verify affected versions. The vulnerability exists in multiple locations and is caused by a possible use-after-free due to a race condition. User interaction is not needed for exploitation. Defenders must assess exposure and prioritize remediation for Google Android systems, including security teams and IT administrators. Remediation requires verification from official sources and application of vendor patches.

Vendor
Google
Product
Android
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-15
Original CVE updated
2026-09-21
Advisory published
2026-09-15
Advisory updated
2026-09-21

Who should care

Defenders responsible for Google Android systems, including security teams and IT administrators, should assess exposure and prioritize remediation. They should verify affected versions and apply vendor patches. Defenders must also monitor for potential remote code execution attempts and be prepared to respond to incidents. Security teams and IT administrators should review the supplied official advisory or CVE and

Why it matters

CVE-2026-55318 is a high-severity vulnerability in Google Android, potentially leading to remote code execution. Defenders should assess exposure, prioritize remediation, and verify affected versions.

  • Remote code execution attempts may occur, requiring monitoring and incident response readiness
  • Affected versions require verification and patching to prevent exploitation
  • Defenders must assess exposure and prioritize remediation for Google Android systems

Technical summary

A possible use-after-free due to a race condition in multiple locations could lead to remote code execution with no additional execution privileges needed. The vulnerability exists in Google Android and has a CVSS score of 8.8. User interaction is not needed for exploitation. The vulnerability is caused by a race condition, which can lead to a use-after-free vulnerability. Defenders should assess exposure and prioritize remediation for Google Android systems.

Defensive priority

High

Recommended defensive actions

  • Assess exposure and prioritize remediation for Google Android systems
  • Verify affected versions and apply vendor patches
  • Monitor for potential remote code execution attempts

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but affected versions and remediation require verification from official sources. The vulnerability has a high severity score of 8.8 and is classified as HIGH. Defenders should verify affected versions and apply vendor patches. The CVE record was published on 2026-09-15T19:17:21.217Z and has not been modified since then. Official sources, such as the CVE Program and NVD, provide additional information on the affected (

Sources and references

Verified primary and authoritative sources

  • CVE-2026-55318 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-55318

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

  • CVE-2026-55318 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-55318

    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.