CVE-2017-7522 is a denial-of-service vulnerability affecting OpenVPN versions prior to 2.4.3 and 2.3.17. An authenticated remote attacker can trigger this by sending a malformed certificate containing an embedded NULL character. Rated as MEDIUM severity (CVSS 6.5), this flaw allows for a complete denial of service (A:H) with low attack complexity and no user interaction required. While no public exploit code or active exploitation has been observed, the vulnerability has received some community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.3.16CPE matchmatch criteria | cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:* | ||
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:*:*:*:*:*:* | ||
2.4.0CPE matchmatch criteria | cpe:2.3:a:openvpn:openvpn:2.4.0:beta1:*:*:*:*:*:* | ||
2.4.0CPE matchmatch criteria | cpe:2.3:a:openvpn:openvpn:2.4.0:beta2:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:L/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, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.