01 Record
CVE-2021-22284
SECURITY - OPC Server for AC 800M - Remote Code Execution Vulnerability
HighPUBLISHEDCNA: ABB
CNA base score8.4 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
02 Description
SECURITY - OPC Server for AC 800M - Remote Code Execution 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
- 0.83% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 57.1% of scored records. A rank, not a probability.
- NVD base score
- 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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
- 2022-02-04 22:29Z4 YR AGO
- Last updated
- 2024-09-16 19:56Z2 YR AGO
- Reserved
- 2021-01-05
- Assigning CNA
- ABB
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.4)
- CNA CVSS vector
- CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-732Incorrect Permission Assignment for Critical ResourceClass
- Data version
- 5.1
- Document digest
- eb4bf8fa1bea42706772e9041147b2bf0934f4415041e6492032217db4864582
05 Affected products
VendorProductVersionsPlatforms
ABB800xA, Control Software for AC 800M OPC Server for AC 800M<= 5.1.0-x, <= 5.1.1-x, 6.0.0-1, 6.0.0-2, 6.0.0-3—
ABBCompact Product Suite - Control and I/O OPC Server for AC 800M<= 5.1.0-x, <= 5.1.1-x, <= 6.0.0-x—
06 References
07 Remediation
Customers on version 5.1 or older are recommended to upgrade to a supported version that is not affected by this issue such as version 6.1 or later.