CVE-2021-39157

Q: How do I fix CVE-2021-39157?

Upgrade detect-character-encoding to 0.7.0 or later.

Q: Is CVE-2021-39157 being actively exploited?

Not that we know of. CVE-2021-39157 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 2.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 80% of all scored CVEs.

Q: How severe is CVE-2021-39157?

CVE-2021-39157 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2021-39157 affect?

Published advisories record a fix for detect-character-encoding (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGHEPSS 80th pctl

7.5

CVSS v3

NVD

Description

detect-character-encoding is an open source character encoding inspection library. In detect-character-encoding v0.6.0 and earlier, data matching no charset causes the Node.js process to crash. The problem has been patched in detect-character-encoding v0.7.0. No workaround are available and all users should update to resolve this issue.

CWE-755

How to fix

Remediation Available

detect-character-encodingNVD

Affected:< 0.7.0Fixed in:0.7.0CVE-2021-39157derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

2.07%probability of exploitation in 30 days

80thpercentile

Elevated risk: more likely to be exploited than 80% of all known CVEs.

References

Patch1

github.com

Exploit2

Related Vulnerabilities

Other CWE-755 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-5638	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-7247	Critical	9.8	99%	KEV	Fix
CVE-2023-36933	High	7.5	72%	-	Fix
CVE-2018-0934	High	7.5	67%	-	Fix
CVE-2019-14287	High	8.8	64%	-	Fix
CVE-2019-12815	Critical	9.8	58%	-	Fix

Common questions

How do I fix CVE-2021-39157?

Upgrade detect-character-encoding to 0.7.0 or later.

Is CVE-2021-39157 being actively exploited?

Not that we know of. CVE-2021-39157 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 2.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 80% of all scored CVEs.

How severe is CVE-2021-39157?

CVE-2021-39157 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-39157 affect?

Published advisories record a fix for detect-character-encoding (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.