What is CVE-2022-25324?

CVE-2022-25324 is a high-severity vulnerability in Bignum Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 7.5/10. Published 2022-05-06.

How severe is CVE-2022-25324?

High severity. CVSS v3 base score is 7.5 out of 10.

Prototype Pollution in Bignum Project

CVE-2022-25324

All versions of package bignum are vulnerable to Denial of Service (DoS) due to a type-check exception in V8, when verifying the type of the second argument to the .powm function, V8 will crash regardless of Node try/catch blocks.

Vulnerability class: Prototype Pollution

Published 2022-05-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.6th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: +0.000

Affected products

Bignum Project
Bignum — versions 0

Weakness classification (CWE)

CWE-1321 — Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution)

References

snyk.io/vuln/SNYK-JS-BIGNUM-2388581 (Exploit, Third Party Advisory)
github.com/justmoon/node-bignum/blob/ef2e02533e598d6df8421000033c4753cde89ee2/i… (Third Party Advisory, Broken Link)

Frequently asked questions

What is CVE-2022-25324?: CVE-2022-25324 is a high-severity vulnerability in Bignum Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 7.5/10. Published 2022-05-06.
How severe is CVE-2022-25324?: High severity. CVSS v3 base score is 7.5 out of 10.