High severity7.5NVD Advisory· Published Nov 11, 2023· Updated Jun 17, 2026
CVE-2023-46849
CVE-2023-46849
Description
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
11cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*range: >=2.11.0,<=2.11.3
- cpe:2.3:a:openvpn:openvpn_access_server:2.12.0:*:*:*:*:*:*:*
- cpe:2.3:a:openvpn:openvpn_access_server:2.12.1:*:*:*:*:*:*:*
- (no CPE)range: 2.11.0
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
- osv-coords2 versionspkg:deb/ubuntu/[email protected]?arch=source&distro=manticpkg:rpm/opensuse/openvpn&distro=openSUSE%20Tumbleweed
< 2.6.5-0ubuntu1.1+ 1 more
- (no CPE)range: < 2.6.5-0ubuntu1.1
- (no CPE)range: < 2.6.7-1.1
- OpenVPN/OpenVPN 2 (Community)v5Range: 2.6.0
Patches
Vulnerability mechanics
References
5- community.openvpn.net/openvpn/wiki/CVE-2023-46849nvdVendor Advisory
- openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/nvdVendor Advisory
- www.debian.org/security/2023/dsa-5555nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/[email protected]/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/nvdMailing List
- lists.fedoraproject.org/archives/list/[email protected]/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/nvd
News mentions
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