Description
In ksys_unshare of fork.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Published: 2026-11-02
Score: 8.4 High
EPSS: n/a
KEV: No
Impact: Local privilege escalation
Action: Apply Patch
AI Analysis

Impact

The vulnerability exists in the ksys_unshare function in the Android kernel. A use‑after‑free condition allows a local user to corrupt kernel memory, which can be leveraged to elevate privileges. The attacker does not require any additional execution privileges or user interaction; simply exploiting the memory corruption can provide higher privileges on the affected system.

Affected Systems

Products impacted are Google Android devices running the affected kernel. Specific version information is not disclosed in the advisory, so all Android installations utilizing the vulnerable kernel code are potentially affected.

Risk and Exploitability

The CVSS score is not provided, and the EPSS score is unavailable, but the vulnerability can be exploited locally without user interaction, indicating a high exploitation likelihood in environments where the vulnerable kernel is active. The issue is not currently listed in CISA's KEV catalog, suggesting no publicly known exploitation, yet the local privilege escalation capability warrants prompt action.

Generated by OpenCVE AI on November 2, 2026 at 22:10 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Android OS update that contains the patched kernel code.
  • Ensure the device firmware is up to date; if updates are pending, apply them immediately.
  • If updates cannot be applied immediately, restrict installation of privileged applications and monitor the system for anomalous privilege escalation attempts.

Generated by OpenCVE AI on November 2, 2026 at 22:10 UTC.

Tracking

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Advisories

No advisories yet.

History

Mon, 02 Nov 2026 22:30:00 +0000

Type Values Removed Values Added
Title Use‑After‑Free in Android Kernel Causing Local Privilege Escalation

Mon, 02 Nov 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google android
Vendors & Products Google
Google android

Mon, 02 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Mon, 02 Nov 2026 20:00:00 +0000

Type Values Removed Values Added
Description In ksys_unshare of fork.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: google_android

Published:

Updated: 2026-11-02T21:03:47.166Z

Reserved: 2026-07-02T05:57:41.545Z

Link: CVE-2026-58826

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-02T20:17:47.573

Modified: 2026-11-02T21:17:34.053

Link: CVE-2026-58826

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-02T22:15:17Z

Weaknesses