CVE record · CVE-2026-16526

Pcp: pcp: privilege escalation to root via linux_sockets pmda vulnerability

CVSS 8.8 HighEPSS 0.0057 · 47th percentile

Published by the CVE Program (CNA: redhat) at 30 Jul 2026, 05:20 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Red Hat	Red Hat Enterprise Linux 10 Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:7.0.3-5.el10_2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:6.3.7-1.el10_0.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.3.7-22.el8_10.5 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.2.5-8.el8_4.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.2.5-8.el8_4.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.3.5-10.el8_6.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.3.5-10.el8_6.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.3.7-19.el8_8.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.3.7-19.el8_8.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:6.3.7-8.el9_8.4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:6.0.1-8.el9_2.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:6.2.0-5.el9_4.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support Package name: pcp https://access.redhat.com/downloads/content/package-browser/	unaffected 0:6.3.7-1.el9_6.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 6 Package name: pcp https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unknown
Red Hat	Red Hat Enterprise Linux 7 Package name: pcp https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat OpenShift Container Platform 5 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected

Identifiers: CVE-2026-16526
CNA: redhat
Weakness (CWE): CWE-403
Tags: Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
Red Hat Enterprise Linux 8.8 Telecommunications Update Service
CWE-403
Published: 30 Jul 2026
Updated: 4 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.8	High	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0057, the 47th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

30 Jul 2026, 05:20 UTC Confirmed by the CVE List
30 Jul 2026, 06:25 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2026:55560 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:55617 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:55740 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:72272 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:72273 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:72593 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:72594 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:73767 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:74612 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:74613 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2026-16526 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2506026 issue-trackingredhat

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.