CVE-2021-27191
CVSS v3
7.5
HIGH
EPSS Score
2.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2021-02-11
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.
Is CVE-2021-27191 actively exploited?
Active exploitation of CVE-2021-27191 has not been confirmed. Its EPSS score was 2.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-27191?
CVE-2021-27191 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-27191 affecting your environment?
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