Network
O2 Czech Republic, a.s.
AS12570registered in Czechia (CZ)hosts in 1 country
As of 2026-10-22, O2 Czech Republic, a.s. (AS12570, registered in Czechia) had 2 532 hosts seen in 1 country; 130 of them with known CVEs (647 distinct, 4 known to be exploited). It announces 11 IPv4 prefixes and 2 IPv6 prefixes (53 760 IPv4 addresses, 3 900th by address space).
Known CVEs in this network
CVEs by severity: CRITICAL 139 HIGH 261 MEDIUM 221 LOW 26
A match is an indication, not proof: it is based on the software version a service reported, and fixes are often backported without changing the version.
Not counted: 51 hosts with CVEs only on distribution builds whose fix may be backported.
Counted 2026-10-22 04:20 UTC
- Organisation
- itself s.r.o.
- Network type
- Network service provider (transit) · peering policy Selective
- Website
- http://www.itself.cz/
- Registry
- RIPE NCC · Czechia CZ · allocated 1999-07-28
- Announced prefixes
- 11 IPv4 · 2 IPv6 See them
- IPv4 address space
- 53 760 addresses · 3 900th of 87 507 networks by size
- Rank by exposure
- 2 121st by hosts with known CVEs Ranking
- Exchange points
- 1
Routing
Most common CVEs in this network
The 50 found on the most hosts, of 647 CVEs.
Most exposed hosts
Known exploited first, then by the number of CVEs.
Showing the first 100 of 130. Complete lists will be available to registered users.
Where its hosts are
| Country | Hosts | With CVEs |
|---|---|---|
| Czechia CZ | 2 532 | 130 |