{"id":"CVE-2026-110838","title":"FreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state before authentication, allowing unauthenticated attackers to inject keyboard input","summary":"FreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state before authentication, allowing unauthenticated attackers to inject keyboard input. Attackers can negotiate TLS-only RDP and send an inp…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-306"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP >= 3.0.0 < 3.32.0"],"published":"2026-10-14","updated":"2026-10-15","sourceUpdated":"2026-10-15T15:54:26.210","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110838","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-m998-cvfm-9444","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/freerdp-shadow-before-3.32.0-pre-authentication-input-injection-via-confirm-active-bypass","label":"disclosure@vulncheck.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110838.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-110838"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2552961"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-110838"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110838"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-10-15T00:02:07.173Z","ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T16:46:51.878958Z"},"epss":0.00326,"epssPercentile":0.25529,"slug":"CVE-2026-110838","body":"## Overview\n\nFreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state before authentication, allowing unauthenticated attackers to inject keyboard input. Attackers can negotiate TLS-only RDP and send an input PDU without Confirm Active to inject synthetic keystrokes into the host user's X11 session via XTEST.\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** · Important · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-110838.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}