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CVE-2026-12996

Medium

Elevated severity or exploit probability.

CVSS base
8.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS — probability of exploitation (30 days)
0.5%
39.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-125
Published 2026-07-30 · modified 2026-08-05

CVSS breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Attack VectorNNetwork
Attack ComplexityLLow
Privileges RequiredLLow
User InteractionNNone
ScopeUUnchanged
ConfidentialityHHigh
IntegrityNNone
AvailabilityHHigh

Timeline

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

Affected

debian openvpn

References

Official: NVD · CVE.org