How severe is CVE-2022-37603?

CVE-2022-37603 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-2022-37603 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-37603?

CVE-2022-37603 affects Webpack.js Loader-utils. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-37603?

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-2022-37603 published?

CVE-2022-37603 was published on 2022-10-14 and last updated on 2026-06-17.

CVE-2022-37603

CVE-2022-37603 is a high-severity vulnerability in Webpack.js Loader-utils 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-1333.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1333
Affected product: Webpack.js Loader-utils
Published: 2022-10-14
Last modified: 2026-06-17

Description

A Regular expression denial of service (ReDoS) flaw was found in Function interpolateName in interpolateName.js in webpack loader-utils 2.0.0 via the url variable in interpolateName.js.

Frequently asked questions

What is CVE-2022-37603?: A Regular expression denial of service (ReDoS) flaw was found in Function interpolateName in interpolateName.js in webpack loader-utils 2.0.0 via the url variable in interpolateName.js.
How severe is CVE-2022-37603?: CVE-2022-37603 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-2022-37603 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-37603?: CVE-2022-37603 affects Webpack.js Loader-utils. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-37603?: 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-2022-37603 published?: CVE-2022-37603 was published on 2022-10-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:webpack.js:loader-utils:*:*:*:*:*:*:*:*

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