Vulnerability details

CVE-2026-84471

OpenVPN OpenVPN

CVSS 4.0

7.2High

Official description

The fix for CVE-2026-12996 was incomplete. A use-after-free in OpenVPN 2.6.0 through 2.6.22 and 2.7_alpha1 through 2.7.7 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry.

CVSS scores

Score	Version	Source	Vector
7.2High	4.0	CVEProject cvelistV5 (CNA) (OpenVPN)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N`

Affected products

Vendor	Product	Versions	Source
OpenVPN	OpenVPN	2.6.0 ≤ v ≤ 2.6.22	CVEProject cvelistV5 (CNA)
OpenVPN	OpenVPN	2.7_alpha1 ≤ v ≤ 2.7.7	CVEProject cvelistV5 (CNA)

References and advisories

https://community.openvpn.net/Security%20Announcements/CVE-2026-84471 vendor-advisory

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Details

Published: 2026-10-14
Last updated: 2026-10-16
State: Published
Assigner (CNA): OpenVPN

Exploit prediction (EPSS)

0.4%

Probability of exploitation in 30 days

35.3%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Partial

Weaknesses (CWE)

CWE-416
Use after free