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CVE-2026-12996

Published: Jul 30, 2026Updated: Aug 5, 2026 Sources: CVE List NVDCWE-125
8.1HIGH
NVD MITRE
EPSS Score
0.5%
Top 62.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry

No summary for this CVE yet.

CVSS Vector Breakdown

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

Weaknesses

CWE-125CWE-416

Affected Products

OpenVPN
oss-project·USaka openvpn access server, connect
OpenVPNOn-premSecurity Product
Networking Infrastructure
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
and 1 more affected products View all →

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

3 techniques
Collection
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026
community.openvpn.net
https://community.openvpn.net/ReleaseHistory#openvpn-275-released-1-july-2026
community.openvpn.net
https://community.openvpn.net/Security%20Announcements/CVE-2026-12996
community.openvpn.net
and 1 more references View all →

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