Is CVE-2021-20657 in the CISA KEV catalog?

No. CVE-2021-20657 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-20657?

CVE-2021-20657 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2021-20657?

CVE-2021-20657 has an EPSS score of 2.73% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-20657?

Upgrade sv-cpt-mc310 firmware to 6.5 or later.

CVE & CISA-KEV Catalog

CVE-2021-20657

MEDIUMEPSS 84th pctl

5.4

CVSS v3

NVD

Description

Improper access control vulnerability in SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an authenticated attacker to obtain and/or alter the setting information without the access privilege via unspecified vectors.

How to fix

Remediation Available

sv-cpt-mc310 firmwareNVD

Affected:< 6.5Fixed in:6.5CVE-2021-20657derived 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 InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

2.73%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory1

jvn.jp

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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.