{"id":"CVE-2026-109938","title":"Positive mapped-video coordinates overflow and abort FreeRDP clients A malicious or compromised RDP server can terminate a FreeRDP client after the user connects with video redirection enabled.","summary":"Positive mapped-video coordinates overflow and abort FreeRDP clients A malicious or compromised RDP server can terminate a FreeRDP client after the user connects with video redirection enabled.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-190"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP >= 3.11.0 < 3.32.0"],"published":"2026-10-13","updated":"2026-10-15","sourceUpdated":"2026-10-15T15:54:26.210","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-109938","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-96rv-gf42-7wq9","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/freerdp-3.11.0-before-3.32.0-integer-overflow-via-mapped-video-geometry-update","label":"disclosure@vulncheck.com"},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-96rv-gf42-7wq9","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-109938.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-109938"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2550535"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-109938"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109938"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat"],"epss":0.00326,"epssPercentile":0.25484,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-14T14:01:30.301146Z"},"ingestedAt":"2026-10-13T14:29:01.848Z","slug":"CVE-2026-109938","body":"## Overview\n\nPositive mapped-video coordinates overflow and abort FreeRDP clients A malicious or compromised RDP server can terminate a FreeRDP client after the user connects with video redirection enabled.\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 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-109938.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":221280,"id":"CVE-2026-109938","ts":1792031036000,"field":"exploit_available","old":"false","new":"true"}]}