Vulnerability in Openvpn Access Server
CVE-2023-46849
Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.
EPSS: 0.011 (62.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Openvpn Access Server — versions 2.11.0, 2.12.0
- Openvpn
- Openvpn 2 (Community) — versions 2.6.0
- Openvpn Openvpn_access_server — versions 2.12.0, 2.12.1
- Debian Debian_linux — versions 12.0
- Fedoraproject Fedora — versions 39
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@openvpn.net (Vendor Advisory)
- security@openvpn.net (Vendor Advisory)
- security@openvpn.net (Third Party Advisory)
- security@openvpn.net (Mailing List)
- security@openvpn.net
Frequently asked questions
- What is CVE-2023-46849?
- CVE-2023-46849 is a high-severity vulnerability in Openvpn Access Server, classified under Divide By Zero. CVSS score: 7.5/10. Published 2023-11-11.
- How severe is CVE-2023-46849?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-46849 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.