{"id":"CVE-2026-121955","aliases":["GHSA-983v-jp34-f3fm"],"url":"https://o3.security/vulnerability/CVE-2026-121955","summary":"FreeRDP before 3.32.2 Use-After-Free in Smartcard Emulation ReleaseContext","details":"FreeRDP before 3.32.2 contains a use-after-free vulnerability in Emulate_SCardReleaseContext that frees the emulated SCardContext before its worker thread is cancelled and joined. A malicious server can send ESTABLISHCONTEXT, a long-timeout GETSTATUSCHANGE, then RELEASECONTEXT smartcard IRPs to corrupt heap memory or crash clients using smartcard emulation.","published":"2026-11-04T15:33:20.216Z","modified":"2026-11-07T02:48:23.175209999Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121955.json"},{"type":"ADVISORY","url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-983v-jp34-f3fm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121955"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-use-after-free-in-smartcard-emulation-releasecontext"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-11-07T02:48:23.175209999Z"}}