High severity · published Jul 6, 2022
CVE-2022-33738
OpenVPN Access Server before 2.11 uses a weak random generator used to create user session token for the web portal
7.5
CVSS
0.9%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OA
Openvpn Access Server · Openvpn
before 2.11.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-33738
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-33738
Release Notes
https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-11-0
More from Openvpn Access Server
9.8
CVE-2023-46850
Use after free in OpenVPN version 2.6.0 to 2.6.6 may lead to undefined behavoir, leaking memory buffers or remote execution when sending network buffers to a remote peer
9.8
CVE-2020-8953
OpenVPN Access Server 2.8.x before 2.8.1 allows LDAP authentication bypass (except when a user is enrolled in two-factor authentication)
7.5
CVE-2025-3110
OpenVPN Access Server 2.7.2 through 3.1.0 accepts bare line-feed sequences inside HTTP header values, allowing remote attackers to perform HTTP request smuggling when deployed…
7.5
CVE-2023-46849
Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an…
7.5
CVE-2021-4234
OpenVPN Access Server 2.10 and prior versions are susceptible to resending multiple packets in a response to a reset packet sent from the client which the client again does not…