VULNERABILITY INTELLIGENCE

CVE-2020-13556

CVSS score9.8 CRITICAL
EPSS probability4.71%
CISA KEVNot currently listed
Published2020-12-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

An out-of-bounds write vulnerability exists in the Ethernet/IP server functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to trigger this vulnerability.

Weakness classification

  • talos-cna@cisco.com: CWE-787
  • nvd@nist.gov: CWE-787

Primary references