CVE-2021-43984
CVE-2021-43984 is a critical-severity vulnerability in Myscada Mypro with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: Critical (CVSS 3.x base score 10.0)
- CVSS v2: 7.5
- EPSS exploit prediction: 1% (65th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Myscada Mypro
- Published:
- Last modified:
Description
mySCADA myPRO: Versions 8.20.0 and prior has a feature where the firmware can be updated, which may allow an attacker to inject arbitrary operating system commands through a specific parameter.
Frequently asked questions
- What is CVE-2021-43984?
- mySCADA myPRO: Versions 8.20.0 and prior has a feature where the firmware can be updated, which may allow an attacker to inject arbitrary operating system commands through a specific parameter.
- How severe is CVE-2021-43984?
- CVE-2021-43984 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-43984 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-43984?
- CVE-2021-43984 affects Myscada Mypro. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-43984?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2021-43984 published?
- CVE-2021-43984 was published on 2021-12-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:myscada:mypro:*:*:*:*:*:*:*:*
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All CVEs affecting Myscada Mypro →
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