VulnerabilityAnalyzed
CVE-2026-12996
A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry
MEDIUM 6.0EPSS 0.46%
Does this matter?
Lower severity and a low EPSS score (0.46%). Track it; it rarely justifies an emergency change on its own.
Description
A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry
- CVSS 4.0
- 6.0 MEDIUMCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.46% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125, CWE-416
- Affected
- openvpn/openvpn · debian/debian linux
- Source
- security@openvpn.net
References
- https://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026Release Notes
- https://community.openvpn.net/ReleaseHistory#openvpn-275-released-1-july-2026Release Notes
- https://community.openvpn.net/Security%20Announcements/CVE-2026-12996Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2026/07/msg00013.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.