Is CVE-2020-16230 in the CISA KEV catalog?

No. CVE-2020-16230 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-16230?

CVE-2020-16230 has a CVSS v3 base score of 2.3 (LOW).

What is the EPSS score for CVE-2020-16230?

CVE-2020-16230 has an EPSS score of 0.34% (26th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-16230?

Upgrade ewon cosy firmware to 14.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-16230

LOW

2.3

CVSS v3

NVD

Description

All version of Ewon Flexy and Cosy prior to 14.1 use wildcards such as (*) under which domains can request resources. An attacker with local access and high privileges could inject scripts into the Cross-origin Resource Sharing (CORS) configuration that could abuse this vulnerability, allowing the attacker to retrieve limited confidential information through sniffing.

How to fix

Remediation Available

ewon cosy firmwareNVD

Affected:< 14.1Fixed in:14.1CVE-2020-16230derived from NVD

ewon flexy firmwareNVD

Affected:< 14.1Fixed in:14.1CVE-2020-16230derived 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 VectorLocal

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.34%probability of exploitation in 30 days

26thpercentile

Low risk: more likely to be exploited than 26% of all known CVEs.

References

Third-Party Advisory1

us-cert.cisa.gov

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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.