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

Scoring

Severity

HIGH

CVSS base score

7.1

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS probability

0.42%

CWE

CWE-401

Published

2026-07-30

Last modified

2026-07-30

Affected products

• OpenVPN OpenVPN
• OpenVPN OpenVPN

Weakness type

• CWE-401

Related vulnerabilities

• CVE-2026-69781 — Windows DHCP Client Denial of Service Vulnerability
• CVE-2026-69809 — Windows Active Directory Domain Services Denial of Service Vulnerability
• CVE-2026-69497 — Windows DHCP Server Denial of Service Vulnerability
• CVE-2026-69405 — Windows DHCP Server Denial of Service Vulnerability
• CVE-2026-70065 — Windows DHCP Server Denial of Service Vulnerability
• CVE-2026-69588 — Windows TCP/IP Denial of Service Vulnerability
• CVE-2026-16028 — Protocol::HTTP2 versions before 1.14 for Perl allow memory exhaustion via closed streams that stream_state never removes from the connection stream table
• CVE-2026-18313 — rpcapd memory leak in libpcap before 1.10.7

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