{"id":"CVE-2026-121406","aliases":["DEBIAN-CVE-2026-121406","EUVD-2026-115938","GHSA-2c9x-4gr7-hrwx","GHSA-9fvr-q6q4-7h2p","UBUNTU-CVE-2026-121406","USN-9007-1"],"status":"published","title":"FreeRDP before 3.32.2 Client Denial of Service via Zero-Output ZGFX Payload","description":"FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00234,"percentile":0.14479,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-617"],"published":"2026-11-03T14:28:07Z","modified":"2026-11-10T02:58:34Z","fixes":[{"ecosystem":"Debian:14","package":"freerdp3","fixed_in":["3.32.2+dfsg-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:24.04:LTS","package":"freerdp3","fixed_in":["3.32.2+dfsg-0ubuntu0.24.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:26.10","package":"freerdp3","fixed_in":["3.32.2+dfsg-0ubuntu0.26.10.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:26.04:LTS","package":"freerdp3","fixed_in":["3.32.2+dfsg-0ubuntu0.26.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"freerdp2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.0+dfsg1-1","2.10.0+dfsg1-1.1","2.11.2+dfsg1-1","2.11.2+dfsg1-1.1~exp1","2.11.2+dfsg1-1.1~exp2","2.11.5+dfsg1-1","2.11.7+dfsg1-1","2.11.7+dfsg1-2","2.11.7+dfsg1-3","2.11.7+dfsg1-4","2.11.7+dfsg1-5","2.11.7+dfsg1-6","2.11.7+dfsg1-6~deb12u1"]},{"source":"osv","ecosystem":"Debian:13","package":"freerdp3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.15.0+dfsg-2.1","3.15.0+dfsg-2.1+deb13u1","3.15.0+dfsg-2.1+deb13u2","3.15.0+dfsg-2.1+deb13u3","3.16.0+dfsg-1","3.16.0+dfsg-2","3.17.0+dfsg-1","3.17.1+dfsg-1","3.17.1+dfsg-2","3.17.2+dfsg-1","3.17.2+dfsg-2","3.17.2+dfsg-3","3.18.0+dfsg-1","3.19.0+dfsg-1","3.19.1+dfsg-1","3.20.0+dfsg-1","3.20.2+dfsg-1","3.21.0+dfsg-1","3.22.0+dfsg-1","3.22.0+dfsg-1~bpo13+0","3.22.0+dfsg-1~bpo13+1","3.22.0+dfsg-3","3.23.0+dfsg-1","3.23.0+dfsg-1~bpo13+1","3.24.0+dfsg-1","3.24.0+dfsg-2","3.24.1+dfsg-1","3.24.2+dfsg-1","3.24.2+dfsg-1~bpo13+1","3.25.0+dfsg-1","3.25.0+dfsg-2","3.25.0+dfsg-3","3.25.0+dfsg-4","3.25.0+dfsg-5","3.26.0+dfsg-1","3.26.0+dfsg-1~bpo13+1","3.27.0+dfsg-1","3.27.1+dfsg-1","3.28.0+dfsg-1","3.28.0+dfsg-2","3.29.0+dfsg-1","3.30.0+dfsg-1","3.30.0+dfsg-1~bpo13+1","3.31.0+dfsg-1","3.31.1+dfsg-1","3.31.1+dfsg-1~bpo13+1","3.32.0+dfsg-1","3.32.1+dfsg-1","3.32.1+dfsg-1~bpo13+1","3.32.2+dfsg-1","3.33.0+dfsg-1"]},{"source":"osv","ecosystem":"Debian:14","package":"freerdp3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.32.2+dfsg-1"}]}],"versions":["3.15.0+dfsg-2.1","3.16.0+dfsg-1","3.16.0+dfsg-2","3.17.0+dfsg-1","3.17.1+dfsg-1","3.17.1+dfsg-2","3.17.2+dfsg-1","3.17.2+dfsg-2","3.17.2+dfsg-3","3.18.0+dfsg-1","3.19.0+dfsg-1","3.19.1+dfsg-1","3.20.0+dfsg-1","3.20.2+dfsg-1","3.21.0+dfsg-1","3.22.0+dfsg-1","3.22.0+dfsg-1~bpo13+0","3.22.0+dfsg-1~bpo13+1","3.22.0+dfsg-3","3.23.0+dfsg-1","3.23.0+dfsg-1~bpo13+1","3.24.0+dfsg-1","3.24.0+dfsg-2","3.24.1+dfsg-1","3.24.2+dfsg-1","3.24.2+dfsg-1~bpo13+1","3.25.0+dfsg-1","3.25.0+dfsg-2","3.25.0+dfsg-3","3.25.0+dfsg-4","3.25.0+dfsg-5","3.26.0+dfsg-1","3.26.0+dfsg-1~bpo13+1","3.27.0+dfsg-1","3.27.1+dfsg-1","3.28.0+dfsg-1","3.28.0+dfsg-2","3.29.0+dfsg-1","3.30.0+dfsg-1","3.30.0+dfsg-1~bpo13+1","3.31.0+dfsg-1","3.31.1+dfsg-1","3.31.1+dfsg-1~bpo13+1","3.32.0+dfsg-1","3.32.1+dfsg-1","3.32.1+dfsg-1~bpo13+1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"freerdp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1","1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.2","1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3","1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.4"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"freerdp2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.0~git20170725.1.1648deb+dfsg1-1","2.0.0~git20170725.1.1648deb+dfsg1-5","2.0.0~git20170725.1.1648deb+dfsg1-5ubuntu1","2.0.0~git20170725.1.1648deb+dfsg1-5ubuntu2","2.0.0~git20170725.1.1648deb+dfsg1-6","2.0.0~git20170725.1.1648deb+dfsg1-6build1","2.0.0~git20170725.1.1648deb+dfsg1-7","2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1","2.1.1+dfsg1-0ubuntu0.18.04.1","2.2.0+dfsg1-0ubuntu0.18.04.1","2.2.0+dfsg1-0ubuntu0.18.04.2","2.2.0+dfsg1-0ubuntu0.18.04.3","2.2.0+dfsg1-0ubuntu0.18.04.4","2.2.0+dfsg1-0ubuntu0.18.04.4+esm1","2.2.0+dfsg1-0ubuntu0.18.04.4+esm2","2.2.0+dfsg1-0ubuntu0.18.04.4+esm3","2.2.0+dfsg1-0ubuntu0.18.04.4+esm4","2.2.0+dfsg1-0ubuntu0.18.04.4+esm5","2.2.0+dfsg1-0ubuntu0.18.04.4+esm6"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"freerdp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1","1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.1","1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"freerdp2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.0~git20190204.1.2693389a+dfsg1-1","2.0.0~git20190204.1.2693389a+dfsg1-2","2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Advisory","advisory","report"]},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-client-denial-of-service-via-zero-output-zgfx-payload","tags":["third-party-advisory","Third Party Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121406","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-9fvr-q6q4-7h2p"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121406.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-121406","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-121406","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-121406","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-9007-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-121386","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121387","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121388","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121389","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121390","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121391","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121392","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121393","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121394","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121395","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121396","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121397","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121398","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121399","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121400","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121401","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121402","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121403","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121404","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121405","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121407","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121408","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121409","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121410","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121411","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2026-121412","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-121406","title":"FreeRDP before 3.32.2 Client Denial of Service via Zero-Output ZGFX Payload","description":"FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.","status":"published","published":"2026-11-03T14:28:07.384Z","modified":"2026-11-07T02:52:48.281Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-617"],"updated_at":"2026-11-07T03:32:21.038338Z"}],"euvd":[{"id":"EUVD-2026-115938","description":"FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.","status":"published","published":"2026-11-03T14:28:07Z","modified":"2026-11-07T02:52:48Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-07T04:08:16.282099Z"}],"ghsa":[{"id":"GHSA-9fvr-q6q4-7h2p","title":"FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects...","description":"FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.","status":"published","published":"2026-11-03T15:32:03Z","modified":"2026-11-03T15:32:03Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-617"],"updated_at":"2026-11-03T15:57:23.404697Z"}],"nvd":[{"id":"CVE-2026-121406","description":"FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.","status":"published","published":"2026-11-03T15:17:29.24Z","modified":"2026-11-07T03:17:05.83Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-617"],"updated_at":"2026-11-07T07:04:25.467195Z"}],"osv":[{"id":"CVE-2026-121406","title":"FreeRDP before 3.32.2 Client Denial of Service via Zero-Output ZGFX Payload","description":"FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.","status":"published","published":"2026-11-03T14:28:07.384Z","modified":"2026-11-08T02:30:36.135245635Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-617"],"updated_at":"2026-11-08T02:58:43.240183Z"},{"id":"DEBIAN-CVE-2026-121406","description":"FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.","status":"published","published":"2026-11-03T15:17:29.24Z","modified":"2026-11-07T10:00:45.460173465Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-07T10:14:19.880839Z"},{"id":"UBUNTU-CVE-2026-121406","description":"FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.","status":"published","published":"2026-11-03T15:17:00Z","modified":"2026-11-09T19:15:16.488530942Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"medium"},{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-09T19:38:09.278998Z"},{"id":"USN-9007-1","title":"freerdp3 vulnerabilities","description":"It was discovered that FreeRDP contained multiple security issues. An\nattacker could possibly use these issues to obtain sensitive information,\ncause FreeRDP to crash, resulting in a denial of service, or execute\narbitrary code.","status":"published","published":"2026-11-09T13:21:41Z","modified":"2026-11-10T02:58:34.321235261Z","updated_at":"2026-11-10T03:21:46.325253Z"}]}}