CVE-2021-20658

Name: CVE-2021-20658
Creator: NVD / NIST
Published: 2021-02-24T12:15:22.83+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.68%

Last modified Jun 17, 2026

CVE-2021-20658 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an attacker to execute arbitrary OS commands with the web server privilege via unspecified vectors.. EPSS estimates a 3.68% chance of exploitation in the next 30 days.

Description

SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an attacker to execute arbitrary OS commands with the web server privilege via unspecified vectors.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.68%

88.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

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-2021-20658?

SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an attacker to execute arbitrary OS commands with the web server privilege via unspecified vectors.

How severe is CVE-2021-20658?

CVE-2021-20658 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.68% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20658?

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-2021-20658?

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

Scan your code now

Source: NVD / NIST