CVE-2021-20660

Sv Cpt Mc310 Firmware vulnerability

CVSS

6.1

EPSS

47.2%

EPSS pct

99th

Exploited

No known

Cross-site scripting vulnerability in SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an attacker to inject an arbitrary script via unspecified vectors.

Affected vendor

Contec

Affected product

Sv Cpt Mc310 Firmware

CVSS vector

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

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2021-02-24

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 47.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2021-20660

Confirm whether Contec Sv Cpt Mc310 Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-20660.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-20660

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-20660 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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