Vulnerability in Hangzhou H3c Technologies SSL Vpn
CVE-2022-50800
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (28.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Hangzhou H3c Technologies SSL Vpn — versions 1.1
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/50742 (exploit)
- www.h3c.com (product)
- www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5697.php (third-party-advisory)
- www.vulncheck.com/advisories/hc-ssl-vpn-na-username-enumeration-via-login-scrip… (third-party-advisory)
Frequently asked questions
- What is CVE-2022-50800?
- CVE-2022-50800 is a high-severity vulnerability in Hangzhou H3c Technologies SSL Vpn, classified under Observable Discrepancy. CVSS score: 7.5/10. Published 2025-12-30.
- How severe is CVE-2022-50800?
- High severity. CVSS v3 base score is 7.5 out of 10.