Skip to main content
No exploitation reportedFix available

CVE-2021-29662

No exploitation reported by the sources we read.

  • Published2021-03-31
  • WeaknessCWE-704

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The Data::Validate::IP module through 0.29 for Perl does not properly consider extraneous zero characters at the beginning of an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses.

Timeline

dates in UTC
  1. 2021-03-3118:15CVE publishedNVD

Versions per branch

NVD
Data\ \
BranchAffectedFixed in
—= validate\no fix published
Netapp snapcenter
BranchAffectedFixed in
—all versionsno fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • libdata-validate-ip-perlUbuntu:20.04:LTSall versions · no fixed version listed
  • libdata-validate-ip-perlUbuntu:18.04:LTSall versions · no fixed version listed
  • libdata-validate-ip-perlUbuntu:16.04:LTSall versions · no fixed version listed
  • libdata-validate-ip-perlDebian:14all versions · fixed in 0.30-1
  • libdata-validate-ip-perlDebian:13all versions · fixed in 0.30-1
  • libdata-validate-ip-perlDebian:12all versions · fixed in 0.30-1
  • perl-data-validate-ipCleanStartall versions · fixed in 0.30-r0

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
2021-03-31
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-r243-xrwf-w499

Frequently asked questions

What is CVE-2021-29662?

The Data::Validate::IP module through 0.29 for Perl does not properly consider extraneous zero characters at the beginning of an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses.

Is CVE-2021-29662 actively exploited?

Active exploitation of CVE-2021-29662 has not been confirmed. Its EPSS score was 2.2% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-29662?

CVE-2021-29662 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Running perl-data-validate-ip? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record