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PatchSiren cyber security CVE debrief

CVE-2026-58726 Google CVE debrief

A CVE record for a possible permission bypass due to a missing permission check in FsmReleaseKey of fsm.c was published on 2026-09-15T19:17:32.950Z and last modified on 2026-09-18T12:58:39.453Z. The vulnerability affects Android systems, allowing for local escalation of privilege with System execution privileges needed. Defenders should assess exposure and verify implementation of FsmReleaseKey of fsm.c. The CVE record and NVD entry provide details on the vulnerability, but vendor advisory details are limited.

Vendor
Google
Product
Android
CVSS
MEDIUM 6.7
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 of Android systems with System execution privileges should assess exposure and verify implementation of FsmReleaseKey of fsm.c. This includes reviewing System execution privileges on Android systems and verifying FsmReleaseKey of fsm.c implementation to prevent local escalation of privilege.

Why it matters

Defenders of Android systems should assess exposure and verify System execution privileges due to a possible permission bypass vulnerability.

  • Local escalation of privilege with System execution privileges needed
  • Verification of FsmReleaseKey of fsm.c implementation

Technical summary

A possible permission bypass due to a missing permission check in FsmReleaseKey of fsm.c could lead to local escalation of privilege with System execution privileges needed. The vulnerability affects Android systems and requires System execution privileges for exploitation. Technical details are based on CVE Program and NVD sources, with limited vendor input. Defenders should review System execution privileges on Android systems and verify FsmReleaseKey of fsm.c implementation.

Defensive priority

Assess exposure and verify System execution privileges on Android systems.

Recommended defensive actions

  • Review System execution privileges on Android systems
  • Verify FsmReleaseKey of fsm.c implementation
  • Assess exposure to local escalation of privilege

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but vendor advisory details are limited. Evidence is based on CVE Program and NVD sources, with limited vendor input. Defenders should verify System execution privileges on Android systems and assess exposure to local escalation of privilege.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-58726 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-58726

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

  • CVE-2026-58726 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-58726

    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.