CVE-2026-16529

Pcp: pcp: denial of service due to signed integer overflow

At a glance

Severity: HIGH 7.5
EPSS: EPSS 0.48 % · percentile 41 (2026-10-27)
State: PUBLISHED
Published: 2026-07-30
Updated: 2026-10-01
Assigner: redhat
NVD status: Awaiting Analysis

Description

A signed integer overflow in the PCP __pmGetPDU() function can be exploited via crafted network packets during PDU processing or SASL negotiation. This permanently blinds the affected daemon, resulting in a total denial of service (DoS) for subsequent packet reads.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	redhat
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · secalert@redhat.com (Secondary)

Weaknesses (CWE)

CWE-190

European references

ENISA EUVD · EUVD-2026-50977
GCVE · GCVE-0-2026-16529

CERT-FR advisories

CERTFR-2026-AVI-1256 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr

Affected products

Product	Versions
Red Hat · Red Hat Enterprise Linux 10	unaffected 0:7.0.3-5.el10_2 < *
Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Support	unaffected 0:6.3.7-1.el10_0.1 < *
Red Hat · Red Hat Enterprise Linux 8	unaffected 0:5.3.7-22.el8_10.5 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	unaffected 0:5.2.5-8.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	unaffected 0:5.2.5-8.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected 0:5.3.5-10.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	unaffected 0:5.3.5-10.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Service	unaffected 0:5.3.7-19.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	unaffected 0:5.3.7-19.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 9	unaffected 0:6.3.7-8.el9_8.4 < *
Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	unaffected 0:6.0.1-8.el9_2.2 < *
Red Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	unaffected 0:6.2.0-5.el9_4.2 < *
Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Support	unaffected 0:6.3.7-1.el9_6.1 < *
Red Hat · Red Hat Enterprise Linux 6
Red Hat · Red Hat Enterprise Linux 7
Red Hat · Red Hat OpenShift Container Platform 4

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD