How severe is CVE-2021-23451?

CVE-2021-23451 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-23451 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-23451?

CVE-2021-23451 affects Otp-generator Project Otp-generator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-23451?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-23451 published?

CVE-2021-23451 was published on 2022-07-25 and last updated on 2026-06-17.

CVE-2021-23451

CVE-2021-23451 is a medium-severity vulnerability in Otp-generator Project Otp-generator with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-330.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-330
Affected product: Otp-generator Project Otp-generator
Published: 2022-07-25
Last modified: 2026-06-17

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.

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 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-23451 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23451?: CVE-2021-23451 affects Otp-generator Project Otp-generator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-23451?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-23451 published?: CVE-2021-23451 was published on 2022-07-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:otp-generator_project:otp-generator:*:*:*:*:*:node.js:*:*

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