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PatchSiren cyber security CVE debrief

CVE-2026-58728 Google CVE debrief

A high-severity CVE-2026-58728 vulnerability exists in ARM64_TLBI of mmu.h, allowing potential local escalation of privilege through a race condition, with no additional execution privileges needed and no user interaction required for exploitation. This vulnerability affects systems with local access, and defenders should assess exposure to potential privilege escalation attacks and prioritize verification of affected systems. The CVE record and NVD entry provide details on the vulnerability, including its high CVSS score of 7. However, specific details on affected versions and remediation are limited. Defenders should review the supplied official advisory or CVE record to validate

Vendor
Google
Product
Android
CVSS
HIGH 7
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

Defenders and security teams responsible for systems with local access should assess exposure to potential privilege escalation attacks and prioritize verification of affected systems.

Why it matters

CVE-2026-58728 is a high-severity vulnerability in ARM64_TLBI of mmu.h, allowing potential local escalation of privilege through a race condition. Defenders should prioritize verification of affected systems, especially those with local access, and assess exposure to potential privilege escalation attacks.

  • Verification of system configurations and exposure to potential privilege escalation attacks
  • Assessment of local access and potential exploitation
  • Review and application of vendor advisories and patches

Technical summary

The CVE-2026-58728 vulnerability exists in ARM64_TLBI of mmu.h, allowing potential local escalation of privilege through a race condition. The vulnerability has a high CVSS score of 7 and requires no additional execution privileges or user interaction for exploitation.

Defensive priority

Defenders should prioritize verification of affected systems, especially those with local access, and assess exposure to potential privilege escalation attacks.

Recommended defensive actions

  • Verify system configurations and assess exposure to potential privilege escalation attacks
  • Review and apply vendor advisories and patches
  • Monitor system logs for suspicious activity

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its high CVSS score of 7 and the potential for local escalation of privilege. However, specific details on affected versions and remediation are limited.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-58728 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-58728

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

  • CVE-2026-58728 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-58728

    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.