Is CVE-2021-31574 in the CISA KEV catalog?

No. CVE-2021-31574 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-31574?

CVE-2021-31574 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-31574?

CVE-2021-31574 has an EPSS score of 1.68% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-31574?

Upgrade en7528 firmware to tlm7.3.275.0-82 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-31574

CRITICALEPSS 74th pctl

9.8

CVSS v3

NVD

Description

In Config Manager, there is a possible command injection due to improper input validation. This could lead to remote escalation of privilege from a proximal attacker with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: A20210009; Issue ID: OSBNB00123234.

CWE-77Command Injection

How to fix

Remediation Available

en7528 firmwareNVD

Affected:< tlm7.3.275.0-82Fixed in:tlm7.3.275.0-82CVE-2021-31574derived from NVD

en7580 firmwareNVD

Affected:< tlm7.3.275.0-82Fixed in:tlm7.3.275.0-82CVE-2021-31574derived 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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.68%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Vendor Advisory1

corp.mediatek.com

Related Vulnerabilities

Other CWE-77 (Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2024-21887	Critical	9.1	100%	KEV + Ransom	-
CVE-2023-1671	Critical	9.8	100%	KEV	Fix
CVE-2023-1389	High	8.8	100%	KEV	Fix
CVE-2021-1498	Critical	9.8	100%	KEV	Fix
CVE-2012-1823	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 2025-03-26.