CVE-2021-27191

Name: CVE-2021-27191
Creator: NVD / NIST
Published: 2021-02-11T18:15:18.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.03%

Last modified Jun 17, 2026

CVE-2021-27191 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The get-ip-range package before 4.0.0 for Node.js is vulnerable to denial of service (DoS) if the range is untrusted input. An attacker could send a large range (such as 128.0.0.0/1) that causes resource exhaustion.. EPSS estimates a 2.03% chance of exploitation in the next 30 days.

Description

The get-ip-range package before 4.0.0 for Node.js is vulnerable to denial of service (DoS) if the range is untrusted input. An attacker could send a large range (such as 128.0.0.0/1) that causes resource exhaustion.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.03%

78.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Get-Ip-Range Project	Get-Ip-Range	< 4.0.0

References

https://advisory.checkmarx.net/advisory/CX-2021-4304Exploit, Third Party Advisory
https://github.com/JoeScho/get-ip-range/commit/98ca22b815c77273cbab259811ab0976118e13b6Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20210319-0002/Third Party Advisory
https://www.npmjs.com/package/get-ip-rangeProduct, Third Party Advisory
https://advisory.checkmarx.net/advisory/CX-2021-4304Exploit, Third Party Advisory
https://github.com/JoeScho/get-ip-range/commit/98ca22b815c77273cbab259811ab0976118e13b6Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20210319-0002/Third Party Advisory
https://www.npmjs.com/package/get-ip-rangeProduct, Third Party Advisory

Timeline

Published: Feb 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27191?

How severe is CVE-2021-27191?

CVE-2021-27191 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.03% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27191?

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-2021-27191?

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

Scan your code now

Source: NVD / NIST