CVE-2020-25200
Pritunl 1.29.2145.25 allows attackers to enumerate valid VPN usernames via a series of /auth/session login attempts.
Does this matter?
Lower severity and a low EPSS score (7.47%). Track it; it rarely justifies an emergency change on its own.
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
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 7.47% probability · 94th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-203
- Affected
- pritunl/pritunl
- Source
- cve@mitre.org
EPSS 7.5% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/lukaszstu/pritunl/blob/master/CVE-2020-25200Exploit, Third Party Advisory
- https://pritunl.comVendor Advisory
- https://pritunl.com/securityVendor Advisory
- https://github.com/lukaszstu/pritunl/blob/master/CVE-2020-25200Exploit, Third Party Advisory
- https://pritunl.comVendor Advisory
- https://pritunl.com/securityVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.