{"id":"CVE-2026-109942","summary":"FreeRDP 2.3.0 before 3.32.0 NULL Pointer Dereference via RD Gateway Close Channel Packet","details":"FreeRDP 2.3.0 before 3.32.0 dereferences a NULL stream in rdg_process_close_packet in libfreerdp/core/gateway/rdg.c because rdg_process_control_packet accepts a header-only PKT_TYPE_CLOSE_CHANNEL packet and passes the null payload without a check. A malicious or compromised RD Gateway can send an eight-byte CLOSE_CHANNEL header to crash a connecting FreeRDP client.","aliases":["GHSA-f46f-pxh9-w2rh"],"modified":"2026-10-14T02:47:57.385811443Z","published":"2026-10-13T13:27:11.301Z","database_specific":{"cwe_ids":["CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109942.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109942.json"},{"type":"ADVISORY","url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f46f-pxh9-w2rh"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109942"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/freerdp-2.3.0-before-3.32.0-null-pointer-dereference-via-rd-gateway-close-channel-packet"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/freerdp/freerdp","events":[{"introduced":"14c7f7aed7dd4e2454ee0cd81028b9f790885021"},{"fixed":"d27a4f7c1c63b62a5e60e5d939ad116cfb58ffc1"}],"database_specific":{"extracted_events":[{"introduced":"2.3.0"},{"fixed":"3.32.0"}],"source":"AFFECTED_FIELD"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109942.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}