CVE Explorer
CVE-2026-49940
Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks.
Unicode digits such as the Arabic-Indic One (U+0661) were accepted but not properly parsed as numbers. This could allow network masks to accept larger networks.
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::_pack"},{"name":"Net::CIDR::Set::IPv4::_encode"},{"name":"Net::CIDR::Set::IPv6::_pack"},{"name":"Net::CIDR::Set::IPv6::_pack_ipv4"}],"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:cafa81a72cf5b5e1ddeed5ee351bb61bcb3907df257888d5e2c29ef4453fdda9 · sha256:3395f446339508d6… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","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:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:cafa81a72cf5b5e1ddeed5ee351bb61bcb3907df257888d5e2c29ef4453fdda9 · sha256:3395f446339508d6… · /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:cafa81a72cf5b5e1ddeed5ee351bb61bcb3907df257888d5e2c29ef4453fdda9 · sha256:3395f446339508d6… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 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:cafa81a72cf5b5e1ddeed5ee351bb61bcb3907df257888d5e2c29ef4453fdda9 · sha256:3395f446339508d6… · /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:cafa81a72cf5b5e1ddeed5ee351bb61bcb3907df257888d5e2c29ef4453fdda9 · sha256:3395f446339508d6… · /containers/cna/references/1
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.