# CVE-2026-49940

## Summary

- **CVE ID:** CVE-2026-49940
- **Severity:** MEDIUM
- **CVSS Score:** 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
- **CWE:** CWE-1289
- **Published:** Jun 4, 2026
- **Last Modified:** Jun 4, 2026

## Description

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.

## Affected Products

- RRWO — Net::CIDR::Set (0)

## References

- [CNA](https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes)
- [CNA](https://nvd.nist.gov/vuln/detail/CVE-2025-40911)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.20%
- **EPSS Percentile:** 9.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._