How severe is CVE-2026-12932?

CVE-2026-12932 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2026-12932 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-12932?

CVE-2026-12932 affects Openvpn. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-12932?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-12932 published?

CVE-2026-12932 was published on 2026-07-30 and last updated on 2026-08-05.

CVE-2026-12932

CVE-2026-12932 is a high-severity vulnerability in Openvpn with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-401.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v4: 7.1
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Openvpn
Published: 2026-07-30
Last modified: 2026-08-05

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

Frequently asked questions

What is 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
How severe is CVE-2026-12932?: CVE-2026-12932 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2026-12932 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-12932?: CVE-2026-12932 affects Openvpn. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-12932?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-12932 published?: CVE-2026-12932 was published on 2026-07-30 and last updated on 2026-08-05.

References

Affected products (1)

cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*

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