Detections
Analytics

CVE-2021-27478

high

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.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-105-02

https://github.com/EIPStackGroup/OpENer

https://www.cisa.gov/news-events/ics-advisories/icsa-25-273-02

Details

Source: Mitre, NVD

Published: 2022-05-12

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

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

Severity: High

EPSS

EPSS: 0.00047