Description
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.
Metrics
CVSS 3.1 9.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| OpenVPN | OpenVPN 2 (Community) | >= 2.6.0, <= 2.6.6 |
| OpenVPN | Access Server | >= 2.11.0, <= 2.11.3; >= 2.12.0, <= 2.12.2 |
References
- https://community.openvpn.net/openvpn/wiki/CVE-2023-46850Vendor Advisory
- https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/Vendor Advisory
- https://community.openvpn.net/openvpn/wiki/CVE-2023-46850Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/
- https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/Vendor Advisory
- https://www.debian.org/security/2023/dsa-5555Third Party Advisory
Timeline
- Published
- Nov 11, 2023
- Last modified
- Jun 23, 2026
- NVD status
- Modified