Denial of Service (DoS)

published 2022-05-06 4 y ago modified 2026-06-17 4 mo ago also GHSA-6429-3g3w-6mw5 , EUVD-2022-2705

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.5%; EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits: 0; none known

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-25324 updated 2025-11-21 cvss 7.5

node-bignum: type-check exception in V8 could lead to DoS

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.52% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

snyk.io https://snyk.io/vuln/SNYK-JS-BIGNUM-2388581 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem	package	affected	fixed in
npm	bignum	<=0.13.1	no fix listed

Affected products

n/a bignum

Classification

Weakness

CWE-1321 Improperly Controlled Modification of Object Prototype Attributes
CWE-248 Uncaught Exception

References

snyk.io /vuln/SNYK-JS-BIGNUM-2388581
web, exploit, third-party-advisory
github.com /justmoon/node-bignum/blob/ef2e02533e598d6df8421000033c4753cde89ee2/index.js%23L111
broken-link, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2022-25324
advisory
github.com /justmoon/node-bignum
package
github.com /justmoon/node-bignum/blob/ef2e02533e598d6df8421000033c4753cde89ee2/index.js#L111
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary