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CVE-2021-23451

29
FAUCET Score

CVE-2021-23451 describes an Insecure Randomness vulnerability in versions of the otp-generator package prior to 3.0.0. This critical flaw, with a CVSS score of 9.8, allows for a brute-force attack due to the insecure generation of one-time passwords. The vulnerability is network-exploitable with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.0.0CPE matchmatch criteria
cpe:2.3:a:otp-generator_project:otp-generator:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.84%
Probability of exploitation in next 30 days
EPSS Percentile
54.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0084 is in the 38th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: otp-generatorFixed in: 3.0.0

Vendor Advisories (1)

npmGHSA-6x93-h9g3-9phrcritical

otp-generator before v3.0.0 insecurely generates random one-time passwords

Jul 26, 2022

References

github.com / Maheshkumar-Kakade/otp-generator/commit/b27de1ce439ae7f533cec26677e9698671275b70
PatchThird Party Advisory
github.com / Maheshkumar-Kakade/otp-generator/issues/12
Issue TrackingThird Party Advisory
security.snyk.io / vuln/SNYK-JS-OTPGENERATOR-1655480
Issue TrackingPatchThird Party Advisory