CVE-2022-50800
H3C SSL VPN n/a Username Enumeration via Login Script Credential Verification
- State
- Published
- Severity
- 6.9 Medium
- Published
- Dec 30, 2025
- Updated
- Jan 2, 2026
- Reserved
- Dec 27, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-203 Observable Discrepancy
Affected Products
| Product | Versions |
|---|---|
H3C SSL VPNHangzhou H3C Technologies |
|
References
- ExploitDB-50742exploit
- H3C Official Product Homepageproduct
- Zero Science Lab Disclosure (ZSL-2022-5697)third-party-advisory
- VulnCheck Advisory: H3C SSL VPN n/a Username Enumeration via Login Script Credential Verificationthird-party-advisory
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