{"id":"CVE-2022-50800","aliases":["EUVD-2022-55927","GHSA-m8f6-rrcx-mrm3"],"status":"published","title":"H3C SSL VPN n/a Username Enumeration via Login Script Credential Verification","description":"H3C SSL VPN contains a user enumeration vulnerability that allows attackers to identify valid usernames through the 'txtUsrName' POST parameter. Attackers can submit different usernames to the login_submit.cgi endpoint and analyze response messages to distinguish between existing and non-existing accounts.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00367,"percentile":0.30754,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-203"],"published":"2025-12-30T22:41:40Z","modified":"2026-06-17T05:24:12Z","products":[{"vendor":"hangzhou h3c technologies","product":"h3c ssl vpn"}],"references":[{"url":"https://www.exploit-db.com/exploits/50742","tags":["exploit"]},{"url":"https://www.h3c.com","tags":["product"]},{"url":"https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5697.php","tags":["third-party-advisory"]},{"url":"https://www.vulncheck.com/advisories/hc-ssl-vpn-na-username-enumeration-via-login-script-credential-verification","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50800"},{"url":"https://github.com/advisories/GHSA-m8f6-rrcx-mrm3"}],"sources":{"cve":[{"id":"CVE-2022-50800","title":"H3C SSL VPN n/a Username Enumeration via Login Script Credential Verification","description":"H3C SSL VPN contains a user enumeration vulnerability that allows attackers to identify valid usernames through the 'txtUsrName' POST parameter. Attackers can submit different usernames to the login_submit.cgi endpoint and analyze response messages to distinguish between existing and non-existing accounts.","status":"published","published":"2025-12-30T22:41:40.801Z","modified":"2026-01-02T19:51:05.508Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"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":"cna"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:34:40.982917Z"}],"euvd":[{"id":"EUVD-2022-55927","description":"H3C SSL VPN contains a user enumeration vulnerability that allows attackers to identify valid usernames through the 'txtUsrName' POST parameter. Attackers can submit different usernames to the login_submit.cgi endpoint and analyze response messages to distinguish between existing and non-existing accounts.","status":"published","published":"2025-12-30T22:41:40Z","modified":"2026-01-02T19:51:05Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:48:56.284833Z"}],"ghsa":[{"id":"GHSA-m8f6-rrcx-mrm3","title":"H3C SSL VPN contains a user enumeration vulnerability that allows attackers to identify valid...","description":"H3C SSL VPN contains a user enumeration vulnerability that allows attackers to identify valid usernames through the 'txtUsrName' POST parameter. Attackers can submit different usernames to the login_submit.cgi endpoint and analyze response messages to distinguish between existing and non-existing accounts.","status":"published","published":"2025-12-31T00:31:10Z","modified":"2025-12-31T00:31:17Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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":"medium"},{"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-203"],"updated_at":"2026-11-02T15:05:24.798125Z"}],"nvd":[{"id":"CVE-2022-50800","description":"H3C SSL VPN contains a user enumeration vulnerability that allows attackers to identify valid usernames through the 'txtUsrName' POST parameter. Attackers can submit different usernames to the login_submit.cgi endpoint and analyze response messages to distinguish between existing and non-existing accounts.","status":"published","published":"2025-12-30T23:15:47.273Z","modified":"2026-06-17T05:24:12.517Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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":"medium","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":"secondary"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:07:43.46277Z"}]}}