Is CVE-2021-42538 in the CISA KEV catalog?

No. CVE-2021-42538 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-42538?

CVE-2021-42538 has a CVSS v3 base score of 8.0 (HIGH).

What is the EPSS score for CVE-2021-42538?

CVE-2021-42538 has an EPSS score of 0.92% (56th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-42538?

Upgrade wireless 1410 gateway firmware to 4.7.94 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2021-42538

HIGH

8.0

CVSS v3

NVD

Description

The affected product is vulnerable to a parameter injection via passphrase, which enables the attacker to supply uncontrolled input.

CWE-78OS Command Injection CWE-77Command Injection

How to fix

Remediation Available

wireless 1410 gateway firmwareNVD

Affected:< 4.7.94Fixed in:4.7.94CVE-2021-42538derived from NVD

wireless 1410d gateway firmwareNVD

Affected:< 4.7.94Fixed in:4.7.94CVE-2021-42538derived from NVD

wireless 1420 gateway firmwareNVD

Affected:< 4.7.94Fixed in:4.7.94CVE-2021-42538derived 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 RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.92%probability of exploitation in 30 days

56thpercentile

Moderate risk: more likely to be exploited than 56% of all known CVEs.

References

Patch1

us-cert.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.