Is CVE-2021-43555 in the CISA KEV catalog?

No. CVE-2021-43555 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-43555?

CVE-2021-43555 has a CVSS v3 base score of 7.3 (HIGH).

What is the EPSS score for CVE-2021-43555?

CVE-2021-43555 has an EPSS score of 37.99% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2021-43555

HIGHEPSS 98th pctl

7.3

CVSS v3

NVD

Description

mySCADA myDESIGNER Versions 8.20.0 and prior fails to properly validate contents of an imported project file, which may make the product vulnerable to a path traversal payload. This vulnerability may allow an attacker to plant files on the file system in arbitrary locations or overwrite existing files, resulting in remote code execution.

CWE-23 CWE-22Path Traversal

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H

Exploit Intelligence

37.99%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-313-04

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.