CVE Explorer
CVE-2026-49942
Net::CIDR::Set versions through 0.20 for Perl did not validate network masks.
The mask portion of a network mask could contain Unicode digits such as the Arabic-Indic One (U+0661), or non-digits, which were ignored. This could allow network masks to accept larger networks.
Leading zeros were also accepted, but treated as decimal instead of octal. This could lead to confusion about what networks are acceptable.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"Net-CIDR-Set","product":"Net::CIDR::Set","programRoutines":[{"name":"Net::CIDR::Set::IPv4::_encode"},{"name":"Net::CIDR::Set::IPv6::_encode"}],"repo":"https://github.com/robrwo/perl-Net-CIDR-Set","vendor":"RRWO","versions":[{"lessThanOrEqual":"0.20","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:96ee266ec41bfd62c1a961810ba49398fca91d9e71a9d7d45700b89c03e6d79f · sha256:a23c0b93efe0d94a… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:96ee266ec41bfd62c1a961810ba49398fca91d9e71a9d7d45700b89c03e6d79f · sha256:a23c0b93efe0d94a… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-1289","description":"CWE-1289 Improper Validation of Unsafe Equivalence in Input","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:96ee266ec41bfd62c1a961810ba49398fca91d9e71a9d7d45700b89c03e6d79f · sha256:a23c0b93efe0d94a… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"tags":["release-notes"],"url":"https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:96ee266ec41bfd62c1a961810ba49398fca91d9e71a9d7d45700b89c03e6d79f · sha256:a23c0b93efe0d94a… · /containers/cna/references/0
{"tags":["related"],"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40911"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:96ee266ec41bfd62c1a961810ba49398fca91d9e71a9d7d45700b89c03e6d79f · sha256:a23c0b93efe0d94a… · /containers/cna/references/1
{"tags":["related"],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45191"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:96ee266ec41bfd62c1a961810ba49398fca91d9e71a9d7d45700b89c03e6d79f · sha256:a23c0b93efe0d94a… · /containers/cna/references/2
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.