{"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 (all versions)","pcp (all versions)","pcp (all versions)","pcp (all versions)","pcp","pcp (all versions)","openshift/ose-rhel-coreos-9"],"patched":["enterprise_linux_appstream_eus_v_10_0","enterprise_linux_appstream_v_10","enterprise_linux_appstream_v_8","enterprise_linux_appstream_e4s_v_9_2","enterprise_linux_appstream_e4s_v_9_4","enterprise_linux_appstream_eus_v_9_6","enterprise_linux_appstream_v_9","enterprise_linux_codeready_linux_builder_eus_v_10_0","enterprise_linux_codeready_linux_builder_v_10"],"published":"2026-07-30","updated":"2026-10-02","sourceUpdated":"2026-10-02T00:17:02.277","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/errata/RHSA-2026:72593","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:72594","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:73767","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74612","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74613","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"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-16529.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-16529"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16529"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00481,"epssPercentile":0.41309,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-07-30T13:58:13.919881Z"},"ingestedAt":"2026-09-28T10:07:17.786Z","slug":"CVE-2026-16529","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2026:72273** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) · released 2026-09-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:72273)\n- **RHSA-2026:55617** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-08-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:55617)\n- **RHSA-2026:55560** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-08-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:55560)\n- **RHSA-2026:72594** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2) · released 2026-09-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:72594)\n- **RHSA-2026:72593** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4) · released 2026-09-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:72593)\n- **RHSA-2026:72272** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6) · released 2026-09-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:72272)\n- **RHSA-2026:55740** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-08-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:55740)\n- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · updated 2026-09-30 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-16529.json)\n- **RHSA-2026:73767** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · released 2026-09-30 · [advisory](https://access.redhat.com/errata/RHSA-2026:73767)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}