Network

O2 Czech Republic, a.s.

AS42908registered in Czechia (CZ)hosts in 1 country

As of 2026-10-09, O2 Czech Republic, a.s. (AS42908, registered in Czechia) had 4 396 hosts seen in 1 country; 120 of them with known CVEs (678 distinct, 6 known to be exploited). It announces 35 IPv4 prefixes and 9 IPv6 prefixes (183 296 IPv4 addresses, 1 176th by address space).

Known CVEs in this network

4 396hosts seen
120hosts with known CVEs
678distinct CVEs
6known exploited

CVEs by severity: CRITICAL 127 HIGH 265 MEDIUM 259 LOW 27

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: 25 hosts with CVEs only on distribution builds whose fix may be backported.

Counted 2026-10-09 08:20 UTC

Organisation
Nordic Telecom sro
Website
https://www.nordictelecom.cz/
Registry
RIPE NCC · Czechia CZ · allocated 2007-05-09
Announced prefixes
35 IPv4 · 9 IPv6 See them
IPv4 address space
183 296 addresses · 1 176th of 87 291 networks by size
Rank by exposure
2 169th by hosts with known CVEs Ranking

Routing

Most common CVEs in this network

CVEHosts
CVE-2019-11072 CRITICAL 9.8 38
CVE-2018-19052 HIGH 7.5 38
CVE-2018-25103 MEDIUM 5.3 38
CVE-2026-60002 HIGH 7.7 34
CVE-2026-60000 HIGH 7.5 34
CVE-2026-59998 MEDIUM 6.5 34
CVE-2026-60001 MEDIUM 6.5 34
CVE-2026-59999 MEDIUM 5.9 34
CVE-2026-59995 MEDIUM 5.4 34
CVE-2026-59996 MEDIUM 5.4 34
CVE-2026-59997 MEDIUM 5.4 34
CVE-2026-73282 MEDIUM 4.8 34
CVE-2026-73281 LOW 3.5 34
CVE-2026-73283 LOW 2.5 34
CVE-2026-35385 HIGH 8.1 26
CVE-2026-35414 HIGH 8.1 26
CVE-2026-35387 MEDIUM 6.5 26
CVE-2026-35388 LOW 2.5 26
CVE-2025-61984 LOW 3.6 24
CVE-2025-61985 LOW 3.6 24
CVE-2025-26465 MEDIUM 6.8 20
CVE-2023-48795 MEDIUM 5.9 19
CVE-2025-32728 LOW 3.8 19
CVE-2026-93546 HIGH 8.8 16
CVE-2023-38408 CRITICAL 9.8 15
CVE-2026-56154 CRITICAL 9.8 15
CVE-2026-57941 CRITICAL 9.8 15
CVE-2026-59797 CRITICAL 9.8 15
CVE-2026-73636 HIGH 8.1 15
CVE-2026-48005 HIGH 7.5 15
CVE-2026-56153 HIGH 7.5 15
CVE-2026-56449 HIGH 7.5 15
CVE-2026-59685 HIGH 7.5 15
CVE-2026-63045 HIGH 7.5 15
CVE-2026-63292 HIGH 7.5 15
CVE-2026-63686 HIGH 7.5 15
CVE-2026-73637 HIGH 7.3 15
CVE-2023-51385 MEDIUM 6.5 15
CVE-2026-58415 MEDIUM 5.3 15
CVE-2026-79768 MEDIUM 5.3 15
CVE-2026-106585 MEDIUM 6.5 14
CVE-2026-42528 MEDIUM 4.3 14
CVE-2026-106552 MEDIUM 4.2 14
CVE-2026-106582 LOW 3.7 14
CVE-2026-42356 LOW 3.7 14
CVE-2026-106587 LOW 3.6 14
CVE-2026-106588 LOW 3.1 14
CVE-2026-106589 LOW 2.9 14
CVE-2026-106583 LOW 2.5 14
CVE-2026-106584 LOW 2.5 14

The 50 found on the most hosts, of 678 CVEs.

Most exposed hosts

IPExploitedCVEs
91.187.63.253 4 159 CVEs
80.87.181.66 3 163 CVEs
93.93.34.52 2 343 CVEs
91.187.63.226 1 261 CVEs
45.159.116.146 1 83 CVEs
77.95.197.6 1 28 CVEs
217.170.102.67 1 17 CVEs
109.108.108.197 1 11 CVEs
109.108.108.54 1 11 CVEs
176.102.137.25 1 11 CVEs
88.81.89.157 1 11 CVEs
88.81.91.30 1 11 CVEs
217.196.116.191 1 6 CVEs
88.81.89.154 1 6 CVEs
109.108.108.4 1 2 CVEs
217.196.116.51 0 85 CVEs
213.19.89.203 0 59 CVEs
94.241.68.77 0 48 CVEs
94.241.71.175 0 47 CVEs
217.196.112.147 0 40 CVEs
5.102.51.33 0 36 CVEs
45.159.116.138 0 34 CVEs
45.159.118.210 0 34 CVEs
176.102.137.11 0 33 CVEs
217.197.147.56 0 33 CVEs
217.197.147.57 0 33 CVEs
217.197.147.58 0 33 CVEs
217.197.147.59 0 33 CVEs
176.102.135.141 0 30 CVEs
217.197.158.118 0 30 CVEs
217.197.158.119 0 30 CVEs
80.251.246.20 0 29 CVEs
88.81.89.137 0 29 CVEs
88.81.91.222 0 29 CVEs
80.251.250.241 0 22 CVEs
80.251.252.225 0 22 CVEs
91.187.54.146 0 22 CVEs
91.187.63.227 0 22 CVEs
92.61.86.241 0 20 CVEs
176.102.135.29 0 20 CVEs
213.19.54.44 0 19 CVEs
109.108.108.126 0 19 CVEs
217.196.114.165 0 18 CVEs
217.197.158.98 0 18 CVEs
5.102.53.78 0 18 CVEs
5.102.53.80 0 18 CVEs
5.102.53.86 0 18 CVEs
5.102.53.91 0 18 CVEs
5.102.53.94 0 18 CVEs
94.241.71.31 0 17 CVEs
217.197.158.116 0 17 CVEs
94.241.68.145 0 15 CVEs
185.78.14.24 0 15 CVEs
213.19.81.114 0 14 CVEs
80.90.132.94 0 14 CVEs
80.90.143.113 0 14 CVEs
178.17.83.14 0 11 CVEs
185.82.239.134 0 11 CVEs
217.196.116.42 0 11 CVEs
5.102.51.35 0 11 CVEs
77.95.195.225 0 11 CVEs
88.81.89.156 0 11 CVEs
93.93.34.178 0 11 CVEs
93.93.34.49 0 11 CVEs
176.102.134.104 0 11 CVEs
185.82.239.204 0 11 CVEs
217.170.103.134 0 11 CVEs
5.102.51.37 0 11 CVEs
213.250.235.54 0 7 CVEs
213.19.71.218 0 4 CVEs
176.102.130.18 0 4 CVEs
213.155.52.77 0 4 CVEs
217.170.102.98 0 4 CVEs
80.87.183.156 0 4 CVEs
88.81.95.67 0 4 CVEs
91.187.52.125 0 4 CVEs
176.102.134.203 0 3 CVEs
176.102.135.135 0 3 CVEs
178.17.88.134 0 3 CVEs
178.17.88.136 0 3 CVEs
178.17.88.253 0 3 CVEs
185.82.239.172 0 3 CVEs
185.82.239.197 0 3 CVEs
217.170.102.108 0 3 CVEs
217.170.102.129 0 3 CVEs
217.170.102.131 0 3 CVEs
217.170.102.28 0 3 CVEs
217.170.102.41 0 3 CVEs
217.170.102.72 0 3 CVEs
217.170.102.79 0 3 CVEs
217.170.102.96 0 3 CVEs
217.170.103.75 0 3 CVEs
46.183.56.144 0 3 CVEs
46.183.56.88 0 3 CVEs
46.231.72.241 0 3 CVEs
46.231.72.246 0 3 CVEs
5.102.55.204 0 3 CVEs
5.102.60.41 0 3 CVEs
88.81.93.218 0 3 CVEs
91.187.51.227 0 3 CVEs

Known exploited first, then by the number of CVEs.

Showing the first 100 of 120. Complete lists will be available to registered users.

Where its hosts are

CountryHostsWith CVEs
Czechia CZ 4 396 120