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CVE-2026-12932

Openvpn vulnerability

8.1 HIGHEPSS 0.75%
  1. Published30 Jul 2026

Description

A memory leak in the tls-crypt-v2 client key extraction in OpenVPN 2.5.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service (memory exhaustion) via a flood of crafted packets

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected products

Openvpn≥ 2.5.0 < 2.6.21 · ≥ 2.7 < 2.7.5

Remediation

Fixed in
Openvpn≥ 2.6.21

References

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Frequently asked

Is CVE-2026-12932 being actively exploited?

CVE-2026-12932 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.75%.

How severe is CVE-2026-12932?

CVE-2026-12932 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.75% probability of exploitation.

Which products are affected by CVE-2026-12932?

Affected products include Openvpn.

How do I fix CVE-2026-12932?

Upgrade affected software to a fixed version, for example Openvpn 2.6.21 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-12932 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.