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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00044.

Exploitation poc

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Hangzhou H3C Technologies H3C SSL VPN affected
Version Status Constraints
1.1 affected —

No data.

No data.

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Vendors Products
H3c Subscribe
Ssl Vpn Subscribe

Project Subscriptions

Vendors Products
H3c Subscribe
Ssl Vpn Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Mon, 05 Jan 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared H3c
H3c ssl Vpn
Vendors & Products H3c
H3c ssl Vpn

Fri, 02 Jan 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 30 Dec 2025 23:00:00 +0000

Type Values Removed Values Added
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.
Title H3C SSL VPN n/a Username Enumeration via Login Script Credential Verification
Weaknesses CWE-203
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-01-02T19:51:05.508Z

Reserved: 2025-12-27T13:53:29.754Z

Link: CVE-2022-50800

cve-icon Vulnrichment

Updated: 2026-01-02T19:50:56.083Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-30T23:15:47.273

Modified: 2025-12-31T20:42:43.210

Link: CVE-2022-50800

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-05T10:19:34Z

Weaknesses