CVE-2022-21187

Q: How do I fix CVE-2022-21187?

Upgrade libvcs to 0.11.1 or later.

Q: Is CVE-2022-21187 being actively exploited?

Not that we know of. CVE-2022-21187 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 3.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 88% of all scored CVEs.

Q: How severe is CVE-2022-21187?

CVE-2022-21187 has a CVSS v3 base score of 8.1, 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-2022-21187 affect?

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

HIGHEPSS 88th pctl

8.1

CVSS v3

NVD

Description

The package libvcs before 0.11.1 are vulnerable to Command Injection via argument injection. When calling the update_repo function (when using hg), the url parameter is passed to the hg clone command. By injecting some hg options it was possible to get arbitrary command execution.

CWE-88

How to fix

Remediation Available

libvcsNVD

Affected:< 0.11.1Fixed in:0.11.1CVE-2022-21187derived 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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.59%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-88 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-10033	Critical	9.8	100%	KEV	Fix
CVE-2022-36804	High	8.8	99%	KEV	Fix
CVE-2026-24061	Critical	9.8	98%	KEV	Fix
CVE-2007-0882	High	10.0	98%	-	-
CVE-2018-17456	Critical	9.8	97%	-	Fix
CVE-2018-19518	High	7.5	95%	-	Fix

Common questions

How do I fix CVE-2022-21187?

Upgrade libvcs to 0.11.1 or later.

Is CVE-2022-21187 being actively exploited?

Not that we know of. CVE-2022-21187 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 3.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 88% of all scored CVEs.

How severe is CVE-2022-21187?

CVE-2022-21187 has a CVSS v3 base score of 8.1, 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-2022-21187 affect?

Published advisories record a fix for libvcs (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.