CVE-2020-13556 is a critical out-of-bounds write vulnerability affecting the Ethernet/IP server functionality in EIP Stack Group OpENer 2.3 and development commit 8c73bf3. This flaw allows an unauthenticated attacker to achieve remote code execution by sending a specially crafted series of network requests. With a CVSS score of 9.8 (Critical), it poses a significant risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation, public exploit code, or Metasploit/Nuclei modules, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the security community.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.3CPE matchmatch criteria | cpe:2.3:a:opener_project:opener:2.3:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.