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CVE-2021-27191

25
FAUCET Score

CVE-2021-27191 describes a denial-of-service vulnerability in the Node.js get-ip-range package prior to version 4.0.0. An attacker can exploit this by providing a large, untrusted IP range, leading to resource exhaustion. This vulnerability has a CVSS score of 7.5 (High), indicating it can be exploited remotely with low complexity, resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.0CPE matchmatch criteria
cpe:2.3:a:get-ip-range_project:get-ip-range:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.03%
Probability of exploitation in next 30 days
EPSS Percentile
79.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0203 is in the 63rd percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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: get-ip-rangeFixed in: 4.0.0

Vendor Advisories (1)

npmGHSA-6q4w-3wp4-q5wfhigh

Denial of Service in get-ip-range

Apr 13, 2021

References

advisory.checkmarx.net / advisory/CX-2021-4304
ExploitThird Party Advisory
github.com / JoeScho/get-ip-range/commit/98ca22b815c77273cbab259811ab0976118e13b6
PatchThird Party Advisory
security.netapp.com / advisory/ntap-20210319-0002
Third Party Advisory
npmjs.com / package/get-ip-range
ProductThird Party Advisory