CVE-2026-16526 (CVSS 8.8)

Description

A flaw in the PCP linux_sockets module exposes an unsecured internal connection. An attacker with initial code execution can exploit this to escalate privileges and execute arbitrary commands as root.

Is your site exposed to CVE-2026-16526?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0076

Probability of exploitation

0.52%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-403 CWE-403

References

Other References

https://access.redhat.com/security/cve/CVE-2026-16526 https://bugzilla.redhat.com/show_bug.cgi?id=2506026

Frequently Asked Questions

What is CVE-2026-16526? +

A flaw in the PCP linux_sockets module exposes an unsecured internal connection. An attacker with initial code execution can exploit this to escalate privileges and execute arbitrary commands as root. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-16526? +

CVE-2026-16526 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0076, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-16526? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-15114 9.8

Ksenia Security lares (legacy model) Home Automation version 1.6 contains a critical security flaw that exposes the alarm system PIN …

CVE-2024-58280 8.8

CMSimple 5.15 contains a remote command execution vulnerability that allows authenticated attackers to modify file extensions and upload malicious PHP …

CVE-2024-21626 8.6

runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc 1.1.11 …

CVE-2025-3032 7.4

Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability …

CVE-2026-16526