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CVE-2026-13379

Openvpn out-of-bounds read

9.1 CRITICALEPSS 0.59%
  1. Published30 Jul 2026

Description

The Windows interactive service in OpenVPN 2.7_alpha1 through 2.7.4 allows remote attackers to cause persistent DNS state pollution or a service crash via a crafted search domain during the disconnection process

CVSS 3.1 breakdown

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

Affected products

Openvpn≥ 2.7 < 2.7.5

Remediation

Fixed in
Openvpn≥ 2.7.5

References

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Frequently asked

Is CVE-2026-13379 being actively exploited?

CVE-2026-13379 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.59%.

How severe is CVE-2026-13379?

CVE-2026-13379 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.59% probability of exploitation.

Which products are affected by CVE-2026-13379?

Affected products include Openvpn.

How do I fix CVE-2026-13379?

Upgrade affected software to a fixed version, for example Openvpn 2.7.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-13379 against the real software inventory on every managed device, every day. 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.