CVE-2017-7478 is a Denial of Service vulnerability affecting OpenVPN versions 2.3.12 and newer, allowing an unauthenticated attacker to crash the server by sending a large control packet. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low attack complexity, leading to a complete loss of availability. While not actively exploited in the wild and not listed in CISA's KEV catalog, public exploit code exists (EDB-41993), and it has garnered significant community discussion and media coverage, indicating awareness among security researchers. The issue is resolved in OpenVPN versions 2.3.15 and 2.4.2.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.3.12CPE matchmatch criteria | cpe:2.3:a:openvpn:openvpn:2.3.12:*:*:*:*:*:*:* | ||
2.3.13CPE matchmatch criteria | cpe:2.3:a:openvpn:openvpn:2.3.13:*:*:*:*:*:*:* | ||
2.3.14CPE matchmatch criteria | cpe:2.3:a:openvpn:openvpn:2.3.14:*:*:*:*:*:*:* | ||
2.4.0CPE matchmatch criteria | cpe:2.3:a:openvpn:openvpn:2.4.0:*:*:*:*:*:*:* | ||
2.4.0CPE matchmatch criteria | cpe:2.3:a:openvpn:openvpn:2.4.0:alpha2:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.