Is CVE-2021-39137 in the CISA KEV catalog?

No. CVE-2021-39137 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-39137?

CVE-2021-39137 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2021-39137?

CVE-2021-39137 has an EPSS score of 1.53% (72th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-39137?

Upgrade go ethereum to 1.10.8 or later.

CVE & CISA-KEV Catalog

CVE-2021-39137

MEDIUMEPSS 72th pctl

6.5

CVSS v3

NVD

Description

go-ethereum is the official Go implementation of the Ethereum protocol. In affected versions a consensus-vulnerability in go-ethereum (Geth) could cause a chain split, where vulnerable versions refuse to accept the canonical chain. Further details about the vulnerability will be disclosed at a later date. A patch is included in the upcoming `v1.10.8` release. No workaround are available.

CWE-436

How to fix

Remediation Available

go ethereumNVD

Affected:>= 1.10.0, < 1.10.8Fixed in:1.10.8CVE-2021-39137derived 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 VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.53%probability of exploitation in 30 days

72ndpercentile

Elevated risk: more likely to be exploited than 72% of all known CVEs.

References

Third-Party Advisory2

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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.