Is CVE-2022-21143 in the CISA KEV catalog?

No. CVE-2022-21143 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-21143?

CVE-2022-21143 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2022-21143?

CVE-2022-21143 has an EPSS score of 1.15% (63th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-21143?

Upgrade a5x firmware to 2.5.4.1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2022-21143

HIGH

7.5

CVSS v3

NVD

Description

MMP: All versions prior to v1.0.3, PTP C-series: Device versions prior to v2.8.6.1, and PTMP C-series and A5x: Device versions prior to v2.5.4.1 does not properly sanitize user input on several locations, which may allow an attacker to inject arbitrary commands.

CWE-78OS Command Injection

How to fix

Remediation Available

a5x firmwareNVD

Affected:< 2.5.4.1Fixed in:2.5.4.1CVE-2022-21143derived from NVD

c5c firmwareNVD

Affected:< 2.8.6.1Fixed in:2.8.6.1CVE-2022-21143derived from NVD

c5x firmwareNVD

Affected:< 2.8.6.1Fixed in:2.8.6.1CVE-2022-21143derived from NVD

c6x firmwareNVD

Affected:< 2.8.6.1Fixed in:2.8.6.1CVE-2022-21143derived from NVD

mimosa management platformNVD

Affected:< 1.0.3Fixed in:1.0.3CVE-2022-21143derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.15%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Third-Party Advisory1

cisa.gov

Related Vulnerabilities

Other CWE-78 (OS Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-1498	Critical	9.8	100%	KEV	Fix
CVE-2014-6271	Critical	9.8	100%	KEV	Fix
CVE-2019-16920	Critical	9.8	100%	KEV	-
CVE-2022-44877	Critical	9.8	100%	KEV	Fix
CVE-2020-8515	Critical	9.8	100%	KEV	-
CVE-2020-9054	Critical	9.8	100%	KEV	Fix

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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.