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CVE-2023-46850

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.

Published: Nov 11, 2023Updated: Jun 23, 2026 Sources: CVE List NVD BDU csafCWE-416
9.8CRITICAL
NVD MITRE
EPSS Score
2.0%
Top 21.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

SINEMA Remote Connect Client before V3.2 SP2 is affected by multiple vulnerabilities. Siemens has released a new version for SINEMA Remote Connect Client and recommends to update to the latest version.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-416

Affected Products

OpenVPN
oss-project·USaka openvpn access server, connect
openvpnOn-premSecurity Product
Networking Infrastructure
openvpn access serverOn-premNetwork Device
Networking Infrastructure / vpn-gateway
OpenVPN 2 (Community)On-premNetwork Device
Networking Infrastructure / vpn-gateway
Access ServerOn-premWeb App
Networking Infrastructure / vpn-gateway
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
ООО «Ред Софт»
commercial·RUaka red soft
РЕД ОСOn-premOS
Operating Systems / linux-distro
OpenVPN, Inc.
commercial·USaka openvpn connect, openvpn 3 linux, easy-rsa
OpenVPNMixed
Security Products / secure-gateway-vpn

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/csaf/ssa-417159.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-417159.html
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-256-10.json
raw.githubusercontent.com
and 14 more references View all →

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