CVE-2023-46850

CRITICAL EPSS 78.1%
Published Nov 11, 20232y ago · Modified Jun 23, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Nov 11, 2023 2y ago
Last Modified Jun 23, 2026 1w ago

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.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
78.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 5

VendorProductVersionRange
openvpnopenvpn*≥2.6.0  –  ≤2.6.6
openvpnopenvpn_access_server*≥2.11.0  –  ≤2.11.3
openvpnopenvpn_access_server*≥2.12.0  –  <2.12.2
debiandebian_linux12.0any
fedoraprojectfedora39any

References 5

  • community.openvpn.net https://community.openvpn.net/openvpn/wiki/CVE-2023-46850
    Vendor Advisory
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/
    Mailing List
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/
  • openvpn.net https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
    Vendor Advisory
  • debian.org https://www.debian.org/security/2023/dsa-5555
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.