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Vulnerability record · CVE-2026-16524 · published 30 July 2026

CVE-2026-16524: OS command injection vulnerability

A command injection flaw in PCP's linux_sockets PMDA allows malicious shell metacharacters via the network.persocket.filter metric. This failed validation lets attackers execute arbitrary commands as the PMDA user when metrics refresh.

7.8 CVSS 3.1 High EPSS 0.65% · top 50.8% CWE-78 · OS command injection Awaiting Analysis
7.8CVSS 3.1 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
21 Aug 2026Last modified by NVD

Description

A command injection flaw in PCP's linux_sockets PMDA allows malicious shell metacharacters via the network.persocket.filter metric. This failed validation lets attackers execute arbitrary commands as the PMDA user when metrics refresh.

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

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:55560
https://access.redhat.com/errata/RHSA-2026:55617
https://access.redhat.com/errata/RHSA-2026:55740
https://access.redhat.com/security/cve/CVE-2026-16524
https://bugzilla.redhat.com/show_bug.cgi?id=2506023

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Source: NIST National Vulnerability Database (record CVE-2026-16524), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.