CVE-2023-46850

9.8 CRITICAL
Published: November 11, 2023 Modified: June 23, 2026
View on NVD

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://community.openvpn.net/openvpn/wiki/CVE-2023-46850
Source: security@openvpn.net
Vendor Advisory
https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
Source: security@openvpn.net
Vendor Advisory
https://community.openvpn.net/openvpn/wiki/CVE-2023-46850
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/
Source: af854a3a-2127-422b-91ae-364da2661108
https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.debian.org/security/2023/dsa-5555
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

7 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
2.0%
78th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-416 CWE-416

Affected Vendors

fedoraproject openvpn debian

Related CVEs

CVE-2026-57700 10.0
CVE-2026-56790 7.3
CVE-2026-56789 6.5
CVE-2026-56788 4.4
CVE-2026-56787 6.5