CVE-2026-56889 Google CVE debrief

Who should care

System administrators and security teams responsible for affected systems should assess exposure and verify System execution privileges on affected systems. They should review and apply vendor advisories and monitor system logs for potential exploitation attempts. System administrators and security teams should also verify System execution privileges on affected systems and assess exposure to potential local The CVE

Why it matters

CVE-2026-56889 is a permission bypass vulnerability due to an integer overflow in multiple locations, potentially leading to local escalation of privilege with System execution privileges needed. User interaction is not required for exploitation. System administrators and security teams responsible for affected systems should assess exposure and verify System execution privileges.

• Verify System execution privileges on affected systems
• Assess exposure to potential local escalation of privilege

Technical summary

The vulnerability is caused by an integer overflow in multiple locations, potentially leading to local escalation of privilege with System execution privileges needed. The vulnerability affects multiple locations and requires System execution privileges for potential exploitation. The CVE record and NVD vulnerability detail page provide official information on the vulnerability.

Defensive priority

Assess exposure and verify System execution privileges on affected systems.

Recommended defensive actions

• Assess exposure and verify System execution privileges on affected systems
• Review and apply vendor advisories
• Monitor system logs for potential exploitation attempts

Evidence notes

The CVE record and NVD vulnerability detail page provide official information on the vulnerability. The vulnerability is caused by an integer overflow in multiple locations. The CVE Program and NVD provide official information on the vulnerability. The vulnerability affects multiple locations and requires System execution privileges for potential exploitation. The vendor advisory also provides information on the vulnerability.

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.