Is CVE-2020-14039 in the CISA KEV catalog?

No. CVE-2020-14039 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-14039?

CVE-2020-14039 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2020-14039?

CVE-2020-14039 has an EPSS score of 1.76% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-14039?

Upgrade Go Programming Language to 1.14.5 or later.

CVE & CISA-KEV Catalog

CVE-2020-14039

MEDIUMEPSS 75th pctl

5.3

CVSS v3

NVD

Description

In Go before 1.13.13 and 1.14.x before 1.14.5, Certificate.Verify may lack a check on the VerifyOptions.KeyUsages EKU requirements (if VerifyOptions.Roots equals nil and the installation is on Windows). Thus, X.509 certificate verification is incomplete.

CWE-295Improper Certificate Validation

How to fix

Remediation Available

Go Programming LanguageWindows application

Affected:1.14.0 1.14.5Fixed in:1.14.5https://go.dev

Affected:1.13.13Fixed in:1.13.13https://go.dev

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 RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

1.76%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Patch1

oracle.com

Third-Party Advisory5

Other references2

Related Vulnerabilities

Other CWE-295 (Improper Certificate Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-4000	Low	3.7	100%	-	Fix
CVE-2020-0601	High	8.1	89%	KEV	Fix
CVE-2009-3555	Critical	9.8	87%	-	Fix
CVE-2022-26923	High	8.8	83%	KEV	Fix
CVE-2023-27823	Critical	9.8	53%	-	-
CVE-2022-42979	High	8.8	24%	-	-

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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.