---
id: CVE-2026-16529
title: >-
  A signed integer overflow in the PCP __pmGetPDU() function can be exploited
  via crafted network packets during PDU processing or SASL negotiation
summary: >-
  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) …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-190
vendor: Red Hat
product: pcp
affected:
  - pcp (all versions)
  - pcp (all versions)
  - pcp (all versions)
  - pcp (all versions)
  - pcp (all versions)
  - pcp
  - pcp (all versions)
  - openshift/ose-rhel-coreos-9
published: '2026-07-30'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T10:16:43.720'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-16529'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:55560'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:55617'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:55740'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:72272'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:72273'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-16529'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2506032'
    label: secalert@redhat.com
tags:
  - nvd
  - cve.org
epss: 0.00361
epssPercentile: 0.27367
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-07-30T13:58:13.919881Z'
ingestedAt: '2026-09-28T10:07:17.786Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.