{"id":"CVE-2026-111373","title":"FreeRDP before 3.32.0 NULL Dereference via Zero-Length WebSocket Ping","summary":"FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocket_reply_pong passe…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cvssSource":"cna","cwe":["CWE-476","CWE-617"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP < 3.32.0"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T16:25:35.637283Z"},"published":"2026-10-16","updated":"2026-10-16","sourceUpdated":"2026-10-16T16:25:47.580Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111373","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-83g2-gf92-5c4g","label":"GitHub Security Advisory (GHSA-83g2-gf92-5c4g)"},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.0-null-dereference-via-zero-length-websocket-ping","label":"VulnCheck Advisory: FreeRDP before 3.32.0 NULL Dereference via Zero-Length WebSocket Ping"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-111373.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-111373"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2553908"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-111373"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111373"}],"tags":["cve.org","csaf","vex","red-hat"],"epss":0.00279,"epssPercentile":0.20214,"ingestedAt":"2026-10-16T01:55:57.994Z","slug":"CVE-2026-111373","body":"## Overview\n\nFreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocket_reply_pong passes a nullptr stream to websocket_reply_close, triggering an assertion failure that terminates the client process and causes denial of service.\n\n## Affected\n\n- `FreeRDP < 3.32.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-111373.json)","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}