{"id":"CVE-2026-22542","aliases":["EUVD-2026-1211","GHSA-gqqp-9725-vwp7"],"status":"published","title":"DENIAL OF SERVICE FOR CONCURRENT CONNECTIONS ON TELNET","description":"An attacker with access to the system's internal network can cause a denial of service on the system by making two concurrent connections through the Telnet service.","severity":{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00365,"percentile":0.30759,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2026-01-07T15:24:04Z","modified":"2026-06-17T10:20:03Z","products":[{"vendor":"efacec","product":"qc 60/90/120"}],"references":[{"url":"https://cds.thalesgroup.com/en"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22542"},{"url":"https://github.com/advisories/GHSA-gqqp-9725-vwp7"}],"sources":{"cve":[{"id":"CVE-2026-22542","title":"DENIAL OF SERVICE FOR CONCURRENT CONNECTIONS ON TELNET","description":"An attacker with access to the system's internal network can cause a denial of service on the system by making two concurrent connections through the Telnet service.","status":"published","published":"2026-01-07T15:24:04.29Z","modified":"2026-01-07T15:38:39.248Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","level":"critical","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T13:39:16.730222Z"}],"euvd":[{"id":"EUVD-2026-1211","description":"An attacker with access to the system's internal network can cause a denial of service on the system by making two concurrent connections through the Telnet service.","status":"published","published":"2026-01-07T15:24:04Z","modified":"2026-01-07T15:38:39Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","level":"critical"}],"updated_at":"2026-11-02T19:48:55.108559Z"}],"ghsa":[{"id":"GHSA-gqqp-9725-vwp7","title":"An attacker with access to the system's internal network can cause a denial of service on the...","description":"An attacker with access to the system's internal network can cause a denial of service on the system by making two concurrent connections through the Telnet service.","status":"published","published":"2026-01-07T18:30:25Z","modified":"2026-01-07T18:30:33Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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":"critical"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:05:31.685025Z"}],"nvd":[{"id":"CVE-2026-22542","description":"An attacker with access to the system's internal network can cause a denial of service on the system by making two concurrent connections through the Telnet service.","status":"published","published":"2026-01-07T16:15:51.74Z","modified":"2026-06-17T10:20:03.443Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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":"critical","assessor":"secondary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:12:03.683495Z"}]}}