What is CVE-2026-12932?

CVE-2026-12932 is a high-severity vulnerability in Openvpn, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 8.1/10. Published 2026-07-30.

How severe is CVE-2026-12932?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Openvpn

CVE-2026-12932

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

EPSS: 0.004 (35.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

Affected products

Openvpn — versions 2.5.0, 2.7_alpha1

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

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

Frequently asked questions

What is CVE-2026-12932?: CVE-2026-12932 is a high-severity vulnerability in Openvpn, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 8.1/10. Published 2026-07-30.
How severe is CVE-2026-12932?: High severity. CVSS v3 base score is 8.1 out of 10.