How severe is CVE-2022-21187?

CVE-2022-21187 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-21187 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-21187?

CVE-2022-21187 affects Libvcs Project Libvcs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-21187?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-21187 published?

CVE-2022-21187 was published on 2022-03-14 and last updated on 2026-06-17.

CVE-2022-21187

CVE-2022-21187 is a high-severity vulnerability in Libvcs Project Libvcs with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-88.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 7.5
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-88
Affected product: Libvcs Project Libvcs
Published: 2022-03-14
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-21187?: 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.
How severe is CVE-2022-21187?: CVE-2022-21187 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-21187 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-21187?: CVE-2022-21187 affects Libvcs Project Libvcs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-21187?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-21187 published?: CVE-2022-21187 was published on 2022-03-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libvcs_project:libvcs:*:*:*:*:*:*:*:*

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