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HIGH

CVE-2022-21213

CVSS v3

7.5

HIGH

EPSS Score

2.1 %

exploit probability, as of 2026-10-18

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • moutnpmall versions · fixed in 1.2.4

Full record on NVD

Description

This affects all versions of package mout. The deepFillIn function can be used to 'fill missing properties recursively', while the deepMixIn mixes objects into the target object, recursively mixing existing child objects as well. In both cases, the key used to access the target object recursively is not checked, leading to exploiting this vulnerability. **Note:** This vulnerability derives from an incomplete fix of [CVE-2020-7792](https://security.snyk.io/vuln/SNYK-JS-MOUT-1014544).

Technical details

Published
2022-06-17

Frequently asked questions

What is CVE-2022-21213?

This affects all versions of package mout. The deepFillIn function can be used to 'fill missing properties recursively', while the deepMixIn mixes objects into the target object, recursively mixing existing child objects as well. In both cases, the key used to access the target object recursively is not checked, leading to exploiting this vulnerability. **Note:** This vulnerability derives from an incomplete fix of [CVE-2020-7792](https://security.snyk.io/vuln/SNYK-JS-MOUT-1014544).

Is CVE-2022-21213 actively exploited?

Active exploitation of CVE-2022-21213 has not been confirmed. Its EPSS score was 2.1% on 2026-10-18, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-21213?

CVE-2022-21213 has a CVSS v3 base score of 7.5 (HIGH severity).

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