CVE-2021-4234 describes a limited amplification attack vulnerability in OpenVPN Access Server versions 2.10 and prior. This flaw allows an attacker to trigger the server to resend multiple packets in response to a client-sent reset packet, even if the client doesn't respond. With a CVSS score of 7.5 (High), this network-based vulnerability requires low attack complexity and can lead to high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.11.0CPE matchmatch criteria | cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/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.
No media coverage found for this CVE.
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.