High 7.5Published Dec 30, 2025

CVE-2022-50800H3C SSL VPN n/a Username Enumeration via Login Script Credential Verification

Updated under an hour ago (Oct 26, 2026, 5:10 PM ET)

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It affects Hangzhou H3C Technologies H3C SSL VPN. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Hangzhou H3C Technologies H3C SSL VPN

Exploited in the last 30 days

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: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-203
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jan 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Hangzhou H3C Technologies H3C SSL VPN hangzhou_h3c_technologies:h3c_ssl_vpn (from the name)	1.1	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.