# CVE-2026-16526

## Summary

- **CVE ID:** CVE-2026-16526
- **Severity:** HIGH
- **CVSS Score:** 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-403
- **Published:** Jul 30, 2026
- **Last Modified:** Aug 21, 2026

## 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.

## Affected Products

- Red Hat — Red Hat Enterprise Linux 8 (0:5.3.7-22.el8_10.5)
- Red Hat — Red Hat Enterprise Linux 10 (0:7.0.3-5.el10_2)
- Red Hat — Red Hat Enterprise Linux 9 (0:6.3.7-8.el9_8.4)

## References

- [CNA](https://access.redhat.com/security/cve/CVE-2026-16526)
- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2506026)
- [CNA](https://access.redhat.com/errata/RHSA-2026:55560)
- [CNA](https://access.redhat.com/errata/RHSA-2026:55617)
- [CNA](https://access.redhat.com/errata/RHSA-2026:55740)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.45%
- **EPSS Percentile:** 38.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._