CVE-2021-27191

CVE-2021-27191 is a high-severity vulnerability in Get-ip-range Project Get-ip-range with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

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.

Frequently asked questions

What is CVE-2021-27191?
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.
How severe is CVE-2021-27191?
CVE-2021-27191 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-27191 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27191?
CVE-2021-27191 affects Get-ip-range Project Get-ip-range. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27191?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-27191 published?
CVE-2021-27191 was published on 2021-02-11 and last updated on 2026-06-17.

References

Affected products (1)