CVE-2021-27478 is a denial-of-service vulnerability affecting EIPStackGroup OpENer EtherNet/IP commits and versions prior to February 10, 2021. An unauthenticated attacker can trigger this vulnerability remotely by sending a specially crafted packet, leading to a high-severity impact on availability (CVSS 7.5). While the vulnerability has a low EPSS score and is not listed in CISA's KEV catalog, indicating low observed exploitation, there is no public exploit code available, and it has received minimal community discussion and media coverage.
| 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:L/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.