{"id":"CVE-2026-110834","title":"FreeRDP from 2.0.0 before 3.32.0 contains a null pointer dereference vulnerability that allows malicious RDP servers to crash clients by sending out-of-lifecycle serial IRPs","summary":"FreeRDP from 2.0.0 before 3.32.0 contains a null pointer dereference vulnerability that allows malicious RDP servers to crash clients by sending out-of-lifecycle serial IRPs. Attackers can send IRP_MJ_READ or IRP_MJ_WRITE before create o…","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-476"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP >= 2.0.0 < 3.32.0"],"published":"2026-10-14","updated":"2026-10-15","sourceUpdated":"2026-10-15T16:17:47.170","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110834","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pw4j-ff39-9vjm","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/freerdp-2.0.0-before-3.32.0-denial-of-service-via-serial-irp-null-handle","label":"disclosure@vulncheck.com"},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pw4j-ff39-9vjm","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110834.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-110834"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2552985"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-110834"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110834"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-15T15:31:34.737668Z"},"ingestedAt":"2026-10-15T00:02:07.172Z","epss":0.00312,"epssPercentile":0.23886,"slug":"CVE-2026-110834","body":"## Overview\n\nFreeRDP from 2.0.0 before 3.32.0 contains a null pointer dereference vulnerability that allows malicious RDP servers to crash clients by sending out-of-lifecycle serial IRPs. Attackers can send IRP_MJ_READ or IRP_MJ_WRITE before create or after close, causing CommReadFile or CommWriteFile to dereference a null handle and terminate clients using Linux serial redirection.\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 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · updated 2026-10-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110834.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":222425,"id":"CVE-2026-110834","ts":1792080923954,"field":"exploit_available","old":"false","new":"true"}]}