Linux · 
Ubuntu · Package update · April 10, 2026
Ubuntu · Package update · April 10, 2026libnet-cidr-lite-perl 0.21-1ubuntu0.18.04.1~esm1: libnet-cidr-lite-perl 0.21-1ubuntu0.18.04.1~esm1 for Ubuntu 18.04.6 LTS (bionic)
libnet-cidr-lite-perl 0.21-1ubuntu0.18.04.1~esm1, released April 10, 2026, fixes 3 CVEs in libnet-cidr-lite-perl. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.
HighUnsupported product
CVEs closed
3
None rated Critical
Exploited
0
None reported
Highest CVSS
7.5
Base score, 0 to 10
Highest EPSS
0.0049
42nd percentile
Priority of the 3 CVEs
Patch now 0
Urgent 0
High 1
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| libnet-cidr-lite-perl | Ubuntu 18.04.6 LTS (bionic) | 0.21-1ubuntu0.18.04.1~esm1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-40198 | libnet-cidr-lite-perl: Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass | 7.5 | 0.0032 | None reported |
| Routine | CVE-2021-47154 | libnet-cidr-lite-perl: The Net::CIDR::Lite module before 0.22 for Perl does not properly consider extraneous zero characters at the beginnin... | 6.3 | 0.0049 | None reported |
| Routine | CVE-2026-40199 | libnet-cidr-lite-perl: Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass | 6.5 | 0.0031 | None reported |
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