What’s Vulnerable › Vulnerabilities

CVE-2020-25200

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-10-01 · updated 2026-06-17
• Weakness: CWE-203

Description

Pritunl 1.29.2145.25 allows attackers to enumerate valid VPN usernames via a series of /auth/session login attempts. Initially, the server will return error 401. However, if the username is valid, then after 20 login attempts, the server will start responding with error 400. Invalid usernames will receive error 401 indefinitely. Note: This has been disputed by the vendor as not a vulnerability. They argue that this is an intended design

Affected products

• Pritunl: 1.29.2145.25

References

• https://github.com/lukaszstu/pritunl/blob/master/CVE-2020-25200
• https://pritunl.com
• https://pritunl.com/security
• https://github.com/lukaszstu/pritunl/blob/master/CVE-2020-25200
• https://pritunl.com
• https://pritunl.com/security

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