CVE-2022-50800

H3C SSL VPN n/a Username Enumeration via Login Script Credential Verification

CVSS 6.9 MEDIUMEPSS 0.3%CWE-203

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.9EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

30 Dec 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Hangzhou H3C Technologies · H3C SSL VPN

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References

https://www.exploit-db.com/exploits/50742 https://www.h3c.com https://www.vulncheck.com/advisories/hc-ssl-vpn-na-username-enumeration-via-login-script-credential-verification https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5697.php