How severe is CVE-2022-21144?

CVE-2022-21144 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-21144 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-21144?

CVE-2022-21144 affects Libxmljs Project Libxmljs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-21144?

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-2022-21144 published?

CVE-2022-21144 was published on 2022-05-01 and last updated on 2026-06-17.

CVE-2022-21144

CVE-2022-21144 is a high-severity vulnerability in Libxmljs Project Libxmljs with a CVSS 3.x base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Libxmljs Project Libxmljs
Published: 2022-05-01
Last modified: 2026-06-17

Description

This affects all versions of package libxmljs. When invoking the libxmljs.parseXml function with a non-buffer argument the V8 code will attempt invoking the .toString method of the argument. If the argument's toString value is not a Function object V8 will crash.

Frequently asked questions

What is CVE-2022-21144?: This affects all versions of package libxmljs. When invoking the libxmljs.parseXml function with a non-buffer argument the V8 code will attempt invoking the .toString method of the argument. If the argument's toString value is not a Function object V8 will crash.
How severe is CVE-2022-21144?: CVE-2022-21144 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-21144 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-21144?: CVE-2022-21144 affects Libxmljs Project Libxmljs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-21144?: 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-2022-21144 published?: CVE-2022-21144 was published on 2022-05-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libxmljs_project:libxmljs:*:*:*:*:*:node.js:*:*

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