What is CVE-2026-13379?

CVE-2026-13379 is a critical-severity vulnerability in Openvpn, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2026-07-30.

How severe is CVE-2026-13379?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Out-of-bounds Read in Openvpn

CVE-2026-13379

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

Vulnerability class: Buffer Overflow

EPSS: 0.003 (27.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Openvpn — versions 2.7_alpha1

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read
CWE-142

References

security@openvpn.net (vendor-advisory, Vendor Advisory)
security@openvpn.net (release-notes, Release Notes)

Frequently asked questions

What is CVE-2026-13379?: CVE-2026-13379 is a critical-severity vulnerability in Openvpn, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2026-07-30.
How severe is CVE-2026-13379?: Critical severity. CVSS v3 base score is 9.1 out of 10.