Description (CNA)
OpenVPN version 2.1.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows attackers via an off-by-one buffer write in the NTLM proxy authentication to potentially cause a crash via a crafted NTLM response from a malicious proxy server
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| OpenVPN / OpenVPN | affected 2.1.0 through 2.6.20; affected 2.7_alpha1 through 2.7.4 |
CWE
CWE-193, CWE-121, CWE-787
References
- https://community.openvpn.net/Security%20Announcements/CVE-2026-11771
- https://community.openvpn.net/ReleaseHistory#openvpn-275-released-1-july-2026
- https://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026
ADP enrichment
No English description supplied.
No references supplied.