CVE-2026-56881

Google · Android

A logic error in the Android kernel function enable_segment allows for a local privilege escalation. This vulnerability does not require user interaction or additional execution privileges.

Executive summary

A high-severity local privilege escalation vulnerability exists in the Android kernel, which could allow an attacker to gain elevated permissions on the device.

Vulnerability

This vulnerability is an elevation of privilege flaw located in the enable_segment function of remap.c. It stems from a logic error that permits a permission bypass, allowing an unauthenticated local attacker to gain unauthorized system access.

Business impact

The ability for a local attacker to escalate privileges to the kernel level poses a significant risk to the integrity and confidentiality of the device. Successful exploitation could allow an attacker to bypass security controls, access sensitive user data, or install persistent malicious software, ultimately undermining the trust model of the mobile platform. Given the high CVSS score of 8.4, this vulnerability represents a substantial threat to organizational device fleets.

Remediation

Immediate Action: Organizations should monitor for security updates provided by Google or device manufacturers and apply them as soon as they are available for specific device models.

Proactive Monitoring: Security teams should monitor device logs for unexpected privilege changes, unauthorized application installations, or unusual system behavior indicative of kernel-level compromise.

Compensating Controls: Ensure that all applications are sourced from official, trusted stores and that device policies restrict the execution of untrusted or side-loaded binaries to limit the initial foothold an attacker might gain.

Exploitation status

Public Exploit Available: Unknown

Analyst recommendation

This vulnerability is serious because it allows for kernel-level escalation, which is a primary target for advanced persistent threats. IT administrators must prioritize the deployment of the forthcoming Android security patches to all managed devices to neutralize this risk. Until patches are available, emphasize the importance of maintaining strict application security policies to prevent the initial access required to trigger this local flaw.

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History

CVE Brief tracked this CVE 1 day before it had a CVSS score.

  1. Disclosed CVE record published
  2. Collected by CVE Brief No CVSS score yet; tracked as early warning
  3. CVSS score assigned 8.4 (3.1)
  4. Analyst report written

Sources