Improper validation of source IP addresses in OpenVPN version 2.6.0 through 2.6.15 and 2.7_alpha1 through 2.7_rc1 allows an attacker to open a session from a different IP address which did not initiate the connection resulting in a denial of service for the originating client
CVSS Details
- CVSS 4.0 Base Score: 4.6 (MEDIUM)
- CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade openvpn | Dec 5, 2025 | Dec 3, 2025 |
| Amazon_linux_2023 | — | Upgrade openvpn-debuginfoUpgrade openvpnUpgrade openvpn-debugsourceUpgrade openvpn-devel | Dec 18, 2025 | Dec 3, 2025 |
| Debian | — | Upgrade openvpn | Dec 5, 2025 | Dec 5, 2025 |
| Freebsd | — | Upgrade openvpn-develUpgrade openvpn | Dec 10, 2025 | Nov 17, 2025 |
| Ubuntu | — | Upgrade openvpn | Nov 28, 2025 | Nov 19, 2025 |
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