CVE-2021-20657

Name: CVE-2021-20657
Creator: NVD / NIST
Published: 2021-02-24T12:15:22.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 2.73%

Last modified Jun 17, 2026

CVE-2021-20657 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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.. EPSS estimates a 2.73% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

2.73%

84.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Contec	Sv-Cpt-Mc310 Firmware	< 6.5

References

Timeline

Published: Feb 24, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-20657?

How severe is CVE-2021-20657?

CVE-2021-20657 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 2.73% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20657?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20657?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST