CVE-2021-27500
High
Published: 12 May 2022
Published
12 May 2022
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0014
33.3th percentile
Risk Priority
15
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-27500 is a high-severity Reachable Assertion (CWE-617) vulnerability in Opener Project Opener. Its CVSS base score is 7.5 (High).
Operationally, ranked at the 33.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-14254
Vulnerability details
A specifically crafted packet sent by an attacker to EIPStackGroup OpENer EtherNet/IP commits and versions prior to Feb 10, 2021 may result in a denial-of-service condition.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
opener project
opener
≤ 2.3
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.