{"id":"CVE-2026-30795","aliases":["EUVD-2026-9829","GHSA-c9v6-fhff-767p"],"status":"published","title":"RustDesk HTTP Client Silently Accepts Invalid TLS Certificates After Handshake Failure","description":"Cleartext Transmission of Sensitive Information vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Heartbeat sync loop modules) allows Sniffing Attacks. This vulnerability is associated with program files src/hbbs_http/sync.Rs and program routines Heartbeat JSON payload construction (preset-address-book-password).\n\nThis issue affects RustDesk Client: through 1.4.5.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00314,"percentile":0.24577,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-319"],"published":"2026-03-05T15:27:16Z","modified":"2026-10-28T02:31:02Z","products":[{"vendor":"rustdesk","product":"rustdesk"},{"vendor":"rustdesk-client","product":"rustdesk client"}],"references":[{"url":"https://github.com/rustdesk/rustdesk","tags":["product","Product","package"]},{"url":"https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub","tags":["third-party-advisory","exploit","Exploit","Third Party Advisory","evidence"]},{"url":"https://www.vulsec.org/","tags":["vdb-entry","third-party-advisory","Not Applicable","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-30795","tags":["advisory"]},{"url":"https://www.vulsec.org"},{"url":"https://github.com/advisories/GHSA-c9v6-fhff-767p"},{"url":"https://github.com/rustdesk/rustdesk,https://github.com/rustdesk/hbb_common","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30795.json","tags":["advisory"]},{"url":"https://github.com/rustdesk/rustdesk/releases","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-30795","title":"RustDesk HTTP Client Silently Accepts Invalid TLS Certificates After Handshake Failure","description":"Cleartext Transmission of Sensitive Information vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Heartbeat sync loop modules) allows Sniffing Attacks. This vulnerability is associated with program files src/hbbs_http/sync.Rs and program routines Heartbeat JSON payload construction (preset-address-book-password).\n\nThis issue affects RustDesk Client: through 1.4.5.","status":"published","published":"2026-03-05T15:27:16.596Z","modified":"2026-03-17T14:31:15.664Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-319"],"updated_at":"2026-11-02T13:44:07.200604Z"}],"euvd":[{"id":"EUVD-2026-9829","description":"Cleartext Transmission of Sensitive Information vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Heartbeat sync loop modules) allows Sniffing Attacks. This vulnerability is associated with program files src/hbbs_http/sync.Rs and program routines Heartbeat JSON payload construction (preset-address-book-password).\n\nThis issue affects RustDesk Client: through 1.4.5.","status":"published","published":"2026-03-05T15:27:16Z","modified":"2026-03-17T14:31:15Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:25:33.692584Z"}],"ghsa":[{"id":"GHSA-c9v6-fhff-767p","title":"Cleartext Transmission of Sensitive Information vulnerability in rustdesk-client RustDesk Client...","description":"Cleartext Transmission of Sensitive Information vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Heartbeat sync loop modules) allows Sniffing Attacks. This vulnerability is associated with program files src/hbbs_http/sync.Rs and program routines Heartbeat JSON payload construction (preset-address-book-password).\n\nThis issue affects RustDesk Client: through 1.4.5.","status":"published","published":"2026-03-05T18:31:37Z","modified":"2026-03-25T15:32:26Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-319"],"updated_at":"2026-11-02T15:06:50.631069Z"}],"nvd":[{"id":"CVE-2026-30795","description":"Cleartext Transmission of Sensitive Information vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Heartbeat sync loop modules) allows Sniffing Attacks. This vulnerability is associated with program files src/hbbs_http/sync.Rs and program routines Heartbeat JSON payload construction (preset-address-book-password).\n\nThis issue affects RustDesk Client: through 1.4.5.","status":"published","published":"2026-03-05T16:16:20.41Z","modified":"2026-06-17T10:32:55.96Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-319"],"updated_at":"2026-11-02T14:12:07.852448Z"}],"osv":[{"id":"CVE-2026-30795","title":"RustDesk HTTP Client Silently Accepts Invalid TLS Certificates After Handshake Failure","description":"Cleartext Transmission of Sensitive Information vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Heartbeat sync loop modules) allows Sniffing Attacks. This vulnerability is associated with program files src/hbbs_http/sync.Rs and program routines Heartbeat JSON payload construction (preset-address-book-password).\n\nThis issue affects RustDesk Client: through 1.4.5.","status":"published","published":"2026-03-05T15:27:16.596Z","modified":"2026-10-28T02:31:02.726595675Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-319"],"updated_at":"2026-11-02T15:45:00.530889Z"}]}}