CVE-2023-46850

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 2.16% Top 20%
Vendor Advisory openvpn.net Vendor Advisory openvpn.net
Affected: OpenVPN OpenVPN 2 (Community)
Affected: OpenVPN Access Server
Published at:
Updated at:

References

Link Tags
https://community.openvpn.net/openvpn/wiki/CVE-2023-46850 vendor advisory
https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/ vendor advisory
https://www.debian.org/security/2023/dsa-5555 third party 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/

Frequently Asked Questions

What is the severity of CVE-2023-46850?
CVE-2023-46850 has been scored as a critical severity vulnerability.
How to fix CVE-2023-46850?
To fix CVE-2023-46850, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-46850 being actively exploited in the wild?
It is possible that CVE-2023-46850 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-46850?
CVE-2023-46850 affects OpenVPN OpenVPN 2 (Community), OpenVPN Access Server.
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