CVE-2022-25324Public exploitNetwork attack vector

Process crash via unchecked .powm modulus type

Published May 6, 2022 · Updated Sep 17, 2024

Denial of service in all versions of Stefan Thomas bignum allows attackers to crash a Node.js process through an invalid .powm modulus. The .powm wrapper leaves its modulus variable undefined when the second argument is not a number, string, or BigNum, then passes that value into the native operation and triggers a fatal V8 type-check exception. Exploitation requires a consuming application to pass attacker-controlled data as the second argument, and the bounded consequence is termination of that Node.js process.

CVSS severity7.5
High
EPSS probability1.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in all versions of Stefan Thomas bignum allows attackers to crash a Node.js process through an invalid .powm modulus. The .powm wrapper leaves its modulus variable undefined when the second argument is not a number, string, or BigNum, then passes that value into the native operation and triggers a fatal V8 type-check exception. Exploitation requires a consuming application to pass attacker-controlled data as the second argument, and the bounded consequence is termination of that Node.js process.

The record

CVE
CVE-2022-25324
Published
May 6, 2022
Updated
Sep 17, 2024
Vendor
Stefan Thomas
Product
bignum
Classifications
CWE-400, CWE-1321, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Stefan Thomas · bignumversion=0 <unspecified

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
7.5SnykCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo