VulnerabilityAnalyzed
CVE-2026-49940
This could allow network masks to accept larger networks.
MEDIUM 6.5EPSS 0.20%
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 0.20% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1289
- Affected
- rrwo/net\
- Source
- 9b29abf9-4ab0-4765-b253-1875cd9b441e
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.