01 Record
CVE-2021-27196
Specially Crafted IEC 61850 Protocol Sequence Vulnerability
HighPUBLISHEDCNA: mitre
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
02 Description
Specially Crafted IEC 61850 Protocol Sequence Vulnerability
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.57% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 74.9% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-06-14 21:20Z5 YR AGO
- Last updated
- 2024-09-17 03:17Z2 YR AGO
- Reserved
- 2021-02-12
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- fdc11e7d272d0069516f7e939fd1db81bb403d40f51840fdbf84e513c173dcb5
05 Affected products
VendorProductVersionsPlatforms
06 References
- search.abb.comhttps://search.abb.com/library/Download.aspx?DocumentID=9AKK107991A8932&LanguageCode=en&DocumentPartId=&Action=Launch
- search.abb.comhttps://search.abb.com/library/Download.aspx?DocumentID=9AKK107991A8936&LanguageCode=en&DocumentPartId=&Action=Launch
- search.abb.comhttps://search.abb.com/library/Download.aspx?DocumentID=9AKK107991A8934&LanguageCode=en&DocumentPartId=&Action=Launch
- search.abb.comhttps://search.abb.com/library/Download.aspx?DocumentID=9AKK107991A8937&LanguageCode=en&DocumentPartId=&Action=Launch
- search.abb.comhttps://search.abb.com/library/Download.aspx?DocumentID=9AKK107991A9057&LanguageCode=en&DocumentPartId=&Action=Launch
- search.abb.comhttps://search.abb.com/library/Download.aspx?DocumentID=9AKK107991A9058&LanguageCode=en&DocumentPartId=&Action=Launch
- search.abb.comhttps://search.abb.com/library/Download.aspx?DocumentID=9AKK107991A9059&LanguageCode=en&DocumentPartId=&Action=Launch
07 Remediation
Refer to the cybersecurity advisories at https://www.hitachiabb-powergrids.com/offering/solutions/cybersecurity/alerts-and-notifications