OP
Product
OpenVPN
by Openvpn · last CVE Oct 14, 2026
63
CVEs
0
On KEV
9.8
Max CVSS
3
New 30D
Severity mix
Critical 8High 26Medium 13Low 5
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-35058
6.5
1%
Jun 8
Improper validation of packet length during tls-crypt-v2 key extraction in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows authenticated attackers to trigger a…
Affected: 2.6.0 through 2.6.19; 2.7_alpha1 through 2.7.1
CVE-2017-7522
6.5
6%
Jun 27
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character
Affected: through 2.3.16; 2.4.0; 2.4.0; 2.4.0; 2.4.0; 2.4.0; +3 more
CVE-2017-7479
6.5
2%
May 15
OpenVPN versions before 2.3.15 and before 2.4.2 are vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated…
Affected: through 2.3.14; 2.4.0; 2.4.0; 2.4.0; 2.4.0; 2.4.0; +2 more
CVE-2026-78221
5.9
0%
Sep 7
An incorrect buffer size calculation in the Windows Interactive Service in OpenVPN 2.7_alpha1 through 2.7.6 allows local authenticated users to cause memory corruption or disclose…
Affected: 2.7_alpha1 through 2.7.6
CVE-2017-7521
5.9
4%
Jun 27
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in…
Affected: through 2.3.16; 2.4.0; 2.4.0; 2.4.0; 2.4.0; 2.4.0; +3 more
CVE-2016-6329
5.9
6%
Jan 31
OpenVPN, when using a 64-bit block cipher, makes it easier for remote attackers to obtain cleartext data via a birthday attack against a long-duration encrypted session, as…
Affected: through 2.3.14
CVE-2026-81830
5.6
0%
Sep 7
The Windows interactive service in OpenVPN 2.4.0 through 2.6.22 allows local authenticated users to bypass the trusted configuration directory constraint via incorrect file path…
Affected: 2.4.0 through 2.6.22
CVE-2026-78043
5.6
0%
Sep 7
The Windows Interactive Service in OpenVPN 2.7_alpha1 through 2.7.6 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary…
Affected: 2.7_alpha1 through 2.7.6
CVE-2025-13751
5.5
0%
Dec 3
Interactive service agent in OpenVPN version 2.5.0 through 2.6.16 and 2.7_alpha1 through 2.7_rc2 on Windows allows a local authenticated user to connect to the service and trigger…
Affected: 2.5.0 before 2.6.17; 2.7; 2.7; 2.7; 2.7; 2.7; +3 more
CVE-2026-13122
5.3
0%
Jul 6
OpenVPN version 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service via a malformed authentication token that triggers a…
Affected: 2.6.0 through 2.6.20; 2.7_alpha1 through 2.7.4
CVE-2014-5455
5.3
1%
Aug 25
Unquoted Windows search path vulnerability in the ptservice service prior to PrivateTunnel version 3.0 (Windows) and OpenVPN Connect version 3.1 (Windows) allows local users to…
Affected: 2.1.28.0
CVE-2024-28882
4.3
1%
Jul 8
OpenVPN from 2.6.0 through 2.6.10 in a server role accepts multiple exit notifications from authenticated clients which will extend the validity of a closing session
Affected: 2.6.0 before 2.6.11
CVE-2026-63649
4.1
0%
Aug 14
The Windows interactive service in OpenVPN 2.4.0 through 2.6.21 and 2.7_alpha1 through 2.7.5 allows local authenticated users to bypass the trusted configuration directory…
Affected: 2.4.0 before 2.6.22; 2.7_alpha1 before 2.7.6
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