VULNERABILITY INTELLIGENCE

CVE-2021-21777

CVSS score10 CRITICAL
EPSS probability1.67%
CISA KEVNot currently listed
Published2021-06-17
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H

Description

An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted network request can lead to an out-of-bounds read.

Weakness classification

  • nvd@nist.gov: CWE-125

Primary references