CVE-2021-22284
SECURITY - OPC Server for AC 800M - Remote Code Execution Vulnerability
Incorrect Permission Assignment for Critical Resource vulnerability in OPC Server for AC 800M allows an attacker to execute arbitrary code in the node running the AC800M OPC Server.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
SECURITY - OPC Server for AC 800M - Remote Code Execution Vulnerability
Incorrect Permission Assignment for Critical Resource vulnerability in OPC Server for AC 800M allows an attacker to execute arbitrary code in the node running the AC800M OPC Server.
- Record
CVE-2021-22284- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-732
- Updated
- 2026-11-02
EUVDEUVD-2021-9430
Incorrect Permission Assignment for Critical Resource vulnerability in OPC Server for AC 800M allows an attacker to execute arbitrary code in the node running the AC800M OPC Server.
- Record
EUVD-2021-9430- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xpp9-6v93-3xvq No score
Incorrect Permission Assignment for Critical Resource vulnerability in OPC Server for AC 800M...
Incorrect Permission Assignment for Critical Resource vulnerability in OPC Server for AC 800M allows an attacker to execute arbitrary code in the node running the AC800M OPC Server.
- Record
GHSA-xpp9-6v93-3xvq- Weakness
- CWE-732
- Updated
- 2026-11-02
NVD
Incorrect Permission Assignment for Critical Resource vulnerability in OPC Server for AC 800M allows an attacker to execute arbitrary code in the node running the AC800M OPC Server.
- Record
CVE-2021-22284- CVSS 3.1
- 8.4 High
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-732
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-22284 is a high vulnerability (CVSS 8.4) in Abb Opc Server For Ac 800m, published February 4, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.83%, the 57th percentile. No source names a fixed version.