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CRITICAL

CVE-2021-23373

CVSS v3

9.8

CRITICAL

EPSS Score

1.2 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

All versions of package set-deep-prop are vulnerable to Prototype Pollution via the main functionality.

Technical details

Published
2022-07-25

Frequently asked questions

What is CVE-2021-23373?

All versions of package set-deep-prop are vulnerable to Prototype Pollution via the main functionality.

Is CVE-2021-23373 actively exploited?

Active exploitation of CVE-2021-23373 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-23373?

CVE-2021-23373 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2021-23373 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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