VulnerabilityAnalyzed
CVE-2026-35058
Improper validation of packet length during tls-crypt-v2 key extraction in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows authenticated attackers to trigger a fatal assertion and cause a denial of service via a specially crafted packet.
MEDIUM 6.9EPSS 0.54%
Does this matter?
Lower severity and a low EPSS score (0.54%). Track it; it rarely justifies an emergency change on its own.
Description
Improper validation of packet length during tls-crypt-v2 key extraction in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows authenticated attackers to trigger a fatal assertion and cause a denial of service via a specially crafted packet.
- CVSS 4.0
- 6.9 MEDIUMCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.54% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- openvpn/openvpn
- Source
- security@openvpn.net
References
- https://community.openvpn.net/ReleaseHistory#openvpn-2620-released-22-april-2026Release Notes
- https://community.openvpn.net/ReleaseHistory#openvpn-272-released-22-april-2026Release Notes
- https://community.openvpn.net/Security%20Announcements/CVE-2026-35058Vendor Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2381Exploit, Mitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.