CVE-2021-23451

Name: CVE-2021-23451
Creator: NVD / NIST
Published: 2022-07-25T14:15:10.26+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2021-23451 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The package otp-generator before 3.0.0 are vulnerable to Insecure Randomness due to insecure generation of random one-time passwords, which may allow a brute-force attack.. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

The package otp-generator before 3.0.0 are vulnerable to Insecure Randomness due to insecure generation of random one-time passwords, which may allow a brute-force attack.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.69%

48.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-330

Affected Software

Vendor	Product	Versions
Otp-Generator Project	Otp-Generator	< 3.0.0

References

https://github.com/Maheshkumar-Kakade/otp-generator/commit/b27de1ce439ae7f533cec26677e9698671275b70Patch, Third Party Advisory
https://github.com/Maheshkumar-Kakade/otp-generator/issues/12Issue Tracking, Third Party Advisory
https://security.snyk.io/vuln/SNYK-JS-OTPGENERATOR-1655480Issue Tracking, Patch, Third Party Advisory
https://github.com/Maheshkumar-Kakade/otp-generator/commit/b27de1ce439ae7f533cec26677e9698671275b70Patch, Third Party Advisory
https://github.com/Maheshkumar-Kakade/otp-generator/issues/12Issue Tracking, Third Party Advisory
https://security.snyk.io/vuln/SNYK-JS-OTPGENERATOR-1655480Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Jul 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23451?

The package otp-generator before 3.0.0 are vulnerable to Insecure Randomness due to insecure generation of random one-time passwords, which may allow a brute-force attack.

How severe is CVE-2021-23451?

CVE-2021-23451 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23451?

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-2021-23451?

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

Scan your code now

Source: NVD / NIST