{"schema":"threatline.record/2","record":{"id":"CVE-2026-109246","aliases":["GHSA-6vjv-4hm3-6698"],"summary":"FreeRDP before 3.32.0 Shadow Server Divide-by-Zero via Frame Acknowledge PDU","details":"FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadow_encoder_inflight_frames() can underflow. An authenticated client can acknowledge a frame id one greater than the last frame sent, causing shadow_encoder_create_frame_id() to divide by zero (SIGFPE) and terminate the process, disconnecting all viewers.","categories":["Unclassified"],"product":"FreeRDP","vendor":"FreeRDP","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109246","source_modified_at":"2026-10-18T11:48:32.027Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"FreeRDP","vendor":"FreeRDP","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"3.32.0"},{"version":"3.32.0","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109246","source_modified_at":"2026-10-18T11:48:32.027Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"FreeRDP","ecosystem":null},"version":"3.32.0","basis":"first unaffected version stated in the CVE record"}],"cvss":7.1,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00313,"percentile":0.23008,"score_date":"2026-10-23"},"published_at":"2026-10-12T16:04:21.002Z","modified_at":"2026-10-18T11:48:32.027Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-109246","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-18T11:48:32.027Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-109246","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6vjv-4hm3-6698","tags":["exploit"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.0-shadow-server-divide-by-zero-via-frame-acknowledge-pdu","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-18T11:48:28.697951Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-18T11:48:32.027Z","content_hash":"5bf52ef5346483588e85cdfe2baaa048090903a240c26afbfab76d62a1aa9937"}}