CVE-2021-27498 is a denial-of-service vulnerability affecting EIPStackGroup OpENer EtherNet/IP versions prior to February 10, 2021. An unauthenticated attacker can trigger this by sending a specially crafted packet over the network, resulting in a high-severity impact (CVSS 7.5). While no public exploit code or active exploitation has been observed, the vulnerability has garnered some community discussion and media coverage. Organizations utilizing affected OpENer products should prioritize patching to mitigate this risk.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.3CPE matchmatch criteria | cpe:2.3:a:opener_project:opener:*:*:*:*:*:*:*:* |
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.
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.