VulnerabilityModified
CVE-2021-27500
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.
HIGH 7.5EPSS 1.32%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.32% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- opener project/opener
- Source
- ics-cert@hq.dhs.gov
References
- https://github.com/EIPStackGroup/OpENerThird Party Advisory
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-105-02Third Party Advisory, US Government Resource
- https://github.com/EIPStackGroup/OpENerThird Party Advisory
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-105-02Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.