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CVE-2025-23083

HIGHCVSS 7.7/10EPSS 0.41%

Last modified

CVE-2025-23083 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. With the aid of the diagnostics_channel utility, an event can be hooked into whenever a worker thread is created. This is not limited only to workers but also exposes internal workers, where an instance of them can be fetched, and its constructor can be grabbed and reinstated for malicious usage. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

With the aid of the diagnostics_channel utility, an event can be hooked into whenever a worker thread is created. This is not limited only to workers but also exposes internal workers, where an instance of them can be fetched, and its constructor can be grabbed and reinstated for malicious usage. This vulnerability affects Permission Model users (--permission) on Node.js v20, v22, and v23.

Metrics

CVSS 3.0
7.7/10

CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Probability
0.41%

33.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2025-23083?
With the aid of the diagnostics_channel utility, an event can be hooked into whenever a worker thread is created. This is not limited only to workers but also exposes internal workers, where an instance of them can be fetched, and its constructor can be grabbed and reinstated for malicious usage. This vulnerability affects Permission Model users (--permission) on Node.js v20, v22, and v23.
How severe is CVE-2025-23083?
CVE-2025-23083 has a CVSS score of 7.7/10 (HIGH severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.
How do I fix CVE-2025-23083?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-23083?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST