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Medium 6.5Published Jun 4, 2026
CVE-2026-49940Net::CIDR::Set versions through 0.20 for Perl accept non-ASCII IP addresses and netmasks.
Updated under an hour ago ()
Does this affect you?
It affects rrwo net::cidr::set. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-1289
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 22, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
rrwo net::cidr::set rrwo:net::cidr::set | before 0.21 | NVD |
References
- https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changesrelease-notes
- https://nvd.nist.gov/vuln/detail/CVE-2025-40911third-party-advisory, us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.