Openvpn Access Server
Vendor:
First CVE: Nov 1, 2005 · Active for 20 years
21
Total CVEs
More Total CVEs than 95% of tracked products
2.1
Avg CVEs / Year
Higher CVE frequency than 76% of tracked products
6.9
Avg CVSS
Higher Avg CVSS than 43% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Openvpn Access Server over time
Volume of CVEsAvg CVSS Base Score
First CVE
Nov 1, 2005
20 years ago
Most Recent CVE
Jul 8, 2026
19 days ago
CVE Severity & Scoring
Openvpn Access Server21 CVEs
38%
48%
10%
All CVEs352,785 CVEs
45%
40%
11%
LowMediumHighCritical
Attack Vector
Local0 (0.0%)
Network13 (61.9%)
Unknown8 (38.1%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low12 (57.1%)
High1 (4.8%)
Unknown8 (38.1%)
User Interaction
None11 (52.4%)
Unknown8 (38.1%)
Required2 (9.5%)
Privileges Required
Low1 (4.8%)
High0 (0.0%)
None12 (57.1%)
Unknown8 (38.1%)
Top CVEs
Signals from CVEs in this product scope (21 CVEs).
21 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2025-3110HIGH 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 behi | Jul 8, 2026 | 7.5 | 33 | NO | NO |
CVE-2017-5868MEDIUM CRLF injection vulnerability in the web interface in OpenVPN Access Server 2.1.4 allows remote attackers to inject arbitrary HTTP headers and consequently conduct session fixation | May 26, 2017 | 6.1 | 33 | NO | YES |
CVE-2023-46850CRITICAL 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. | Nov 11, 2023 | 9.8 | 32 | NO | NO |
CVE-2020-8953CRITICAL OpenVPN Access Server 2.8.x before 2.8.1 allows LDAP authentication bypass (except when a user is enrolled in two-factor authentication). | Feb 13, 2020 | 9.8 | 27 | NO | NO |
CVE-2023-46849HIGH 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 application | Nov 11, 2023 | 7.5 | 25 | NO | NO |
CVE-2021-4234HIGH 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 res | Jul 6, 2022 | 7.5 | 25 | NO | NO |
CVE-2020-36382HIGH OpenVPN Access Server 2.7.3 to 2.8.7 allows remote attackers to trigger an assert during the user authentication phase via incorrect authentication token data in an early phase of | Jun 4, 2021 | 7.5 | 25 | NO | NO |
CVE-2022-33738HIGH OpenVPN Access Server before 2.11 uses a weak random generator used to create user session token for the web portal | Jul 6, 2022 | 7.5 | 24 | NO | NO |
CVE-2022-33737HIGH The OpenVPN Access Server installer creates a log file readable for everyone, which from version 2.10.0 and before 2.11.0 may contain a random generated admin password | Jul 6, 2022 | 7.5 | 24 | NO | NO |
CVE-2006-1629HIGH OpenVPN 2.0 through 2.0.5 allows remote malicious servers to execute arbitrary code on the client by using setenv with the LD_PRELOAD environment variable. | Apr 6, 2006 | 9.0 | 23 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (21 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
1 CVE
4.8% of CVEs· 97th percentile
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (21 CVEs).
Media Mentions
Signals from CVEs in this product scope (21 CVEs).
Top CNAs Publishing CVEs For Openvpn Access Server
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 2.1.4 | 1 | 6.1 | 4.6% | 0 | 1 |
| 2.12.1 | 1 | 7.5 | 1.1% | 0 | 0 |
| 2.12.0 | 1 | 7.5 | 1.1% | 0 | 0 |
| 2.0.8 | 1 | 6.8 | 3.5% | 0 | 0 |
| 2.0.7 | 2 | 5.4 | 2.4% | 0 | 0 |
| 2.0.6 | 2 | 5.4 | 2.4% | 0 | 0 |
| 2.0.5 | 3 | 6.6 | 2.6% | 0 | 0 |
| 2.0.3 | 2 | 7.9 | 3.3% | 0 | 0 |
| 2.0.2 | 5 | 6.5 | 2.8% | 0 | 0 |
| 2.0.10 | 1 | 6.8 | 3.5% | 0 | 0 |
| 2.0.1 | 5 | 6.5 | 2.8% | 0 | 0 |
| 2.0.0 | 2 | 4.7 | 3.1% | 0 | 0 |