CVE-2026-58679 Google CVE debrief

Who should care

Defenders of Android systems should assess exposure and prioritize verification of affected systems, focusing on local privilege escalation risks. This includes reviewing system configurations and patch levels, monitoring for suspicious local activity, and tracking exceptions and retesting remediated assets.

Why it matters

CVE-2026-58679 is a HIGH-severity vulnerability in Android systems that could allow local escalation of privilege without additional execution privileges or user interaction, due to a logic error leading to a heap buffer overflow.

• Local privilege escalation risk
• Potential system compromise through buffer overflow

Technical summary

The gf_ta_test_set_config function in gf_ta_test.c contains a logic error that could lead to a heap buffer overflow, enabling local escalation of privilege. This HIGH-severity vulnerability in Android systems could allow local escalation of privilege without additional execution privileges or user interaction, due to a logic error leading to a heap buffer overflow. The vulnerability affects Android systems, and defenders should assess exposure and prioritize verification of affected systems, focusing on local privilege escalation risks.

Defensive priority

Assess exposure and prioritize verification of affected Android systems, focusing on local privilege escalation risks.

Recommended defensive actions

• Inventory Android systems for potential exposure
• Verify system configurations and patch levels
• Monitor for suspicious local activity
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its CVSS score of 8.4 and HIGH severity. The vulnerability was published on 2026-09-15T19:17:31.600Z and has not been modified since then. The official CVE Program record and NIST NVD vulnerability detail provide source-provided CVE metadata and official vulnerability assessment.

Sources and 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.