VULNERABILITY INTELLIGENCE

CVE-2021-27478

CVSS score8.2 HIGH

EPSS probability1.16%

CISA KEVNot currently listed

Published2022-05-12

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Description

A specifically crafted packet sent by an attacker to EIPStackGroup OpENer EtherNet/IP commits and versions prior to Feb 10, 2021 may cause a denial-of-service condition.

Weakness classification

ics-cert@hq.dhs.gov: CWE-681
nvd@nist.gov: CWE-681

Primary references

ics-cert@hq.dhs.gov — Third Party Advisory
ics-cert@hq.dhs.gov — Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, US Government Resource