CVE Catalog

CVE-2026-58090

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.13%

3th percentile - higher than 3% of all known CVEs

Summary

The SOCK_STREAM receive path in the unix socket implementation failed to fully detach control messages from the socket buffer before processing them. Some error paths would free those messages, leaving freed data mbufs in the receive socket buffer. An unprivileged local user can exploit this use-after-free to escalate privileges.

Risk Assessment

Risk of privilege escalation by an unprivileged local user, potentially leading to unauthorized system access.

Recommendation

Install the operating system update that fixes the use-after-free in the unix socket receive path.

Related vulnerabilities

Original NVD description (English source)

The SOCK_STREAM receive path in the unix socket implementation failed to fully detach control messages from the socket buffer before processing them. Some error paths would free those messages, leaving freed data mbufs in the receive socket buffer. An unprivileged local user can exploit this use-after-free to escalate privileges.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS