CVE•Published 2026-06-04•Modified 2026-06-08•0 articles on news•5 live references•NVD data
CVE-2026-49940Rrwo · Net\
Vulnerability data via NVD (ingested)
CVSS v3.1
6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS percentile
13
Exploit Prediction Scoring System · top 87% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2026-06-04
Modified 2026-06-08
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-49940Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Rrwo Net\" version:"\"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"Net\"HTTP body or banner mentions "Net\" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-49940Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-49940Censys host search filtered to this CVE id.
grep.app
CVE-2026-49940Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-49940GitHub code search for direct mentions.
Google dork
"CVE-2026-49940" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-49940 on GitHub.
We haven't classified any articles referencing CVE-2026-49940 yet. The external references above still apply.