{"id":"CVE-2026-35092","title":"A flaw was found in Corosync","summary":"A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to cr…","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":"corosync","product":"corosync","affected":["corosync","openshift = 4.0","enterprise_linux = 7.0","enterprise_linux = 8.0","enterprise_linux = 9.0","enterprise_linux = 10.0"],"published":"2026-04-01","updated":"2026-08-21","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-35092","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:13644","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:13657","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:13673","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:14205","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:14210","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:14211","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:14212","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:14213","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:14214","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:14215","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:14216","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:19043","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:19200","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:20916","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-35092","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2453169","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2453814","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00994,"epssPercentile":0.61178,"ingestedAt":"2026-08-21T16:19:13.441Z","slug":"CVE-2026-35092","body":"## Overview\n\nA flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to crash, leading to a denial of service. This vulnerability specifically affects Corosync deployments configured to use totemudp/totemudpu mode.\n\n## Affected\n\n- `corosync`\n- `openshift = 4.0`\n- `enterprise_linux = 7.0`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n- `enterprise_linux = 10.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}