CVE-2021-47156

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Published Mar 18, 2024 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Description

The Net::IPAddress::Util module before 5.000 for Perl does not properly consider extraneous zero characters in an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

No data.

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.454% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/
https://metacpan.org/release/Net-IPAddress-Util
https://metacpan.org/release/PWBENNETT/Net-IPAddress-Util-5.000/changes

History

Mar 27, 2025 8:15 PM Weaknesses updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-1287
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}`

Subscriptions

No data.

Weaknesses

CWE-1287

Sources

CVE record Updated: Mar 27, 2025, 7:33 PM

Status: PUBLISHED
Assigner: mitre
Published: Mar 18, 2024, 12:00 AM
Updated: Mar 27, 2025, 7:33 PM
Reserved: Mar 18, 2024, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 4, 2024, 5:24 AM

Updated: Aug 4, 2024, 5:24 AM

NVD Updated: Jun 17, 2026, 4:16 AM

Status: Deferred
Published: Mar 18, 2024, 5:15 AM
Modified: Jun 17, 2026, 4:16 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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