OSN

Network

Leaseweb UK Limited

AS205544registered in United Kingdom (GB)hosts in 3 countries

As of 2026-10-09, Leaseweb UK Limited (AS205544, registered in United Kingdom) had 10 090 hosts seen in 3 countries; 873 of them with known CVEs (360 distinct, 4 known to be exploited). It announces 65 IPv4 prefixes and 31 IPv6 prefixes (46 592 IPv4 addresses, 4 125th by address space).

Known CVEs in this network

10 090hosts seen
873hosts with known CVEs
360distinct CVEs
4known exploited

CVEs by severity: CRITICAL 49 HIGH 151 MEDIUM 134 LOW 25 UNRATED 1

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

Counted 2026-10-09 03:20 UTC

Organisation
Leaseweb UK Ltd
Network type
Content / hosting · peering policy Selective
Website
https://www.leaseweb.com/
Registry
RIPE NCC · United Kingdom GB · allocated 2017-07-26
Announced prefixes
65 IPv4 · 31 IPv6 See them
IPv4 address space
46 592 addresses · 4 125th of 87 266 networks by size
Rank by exposure
499th by hosts with known CVEs Ranking

Routing

Most common CVEs in this network

CVEHosts
CVE-2026-60002 HIGH 7.7 710
CVE-2026-60000 HIGH 7.5 710
CVE-2026-59998 MEDIUM 6.5 710
CVE-2026-60001 MEDIUM 6.5 710
CVE-2026-59999 MEDIUM 5.9 710
CVE-2026-59995 MEDIUM 5.4 710
CVE-2026-59996 MEDIUM 5.4 710
CVE-2026-59997 MEDIUM 5.4 710
CVE-2026-73282 MEDIUM 4.8 710
CVE-2026-73281 LOW 3.5 710
CVE-2026-73283 LOW 2.5 710
CVE-2026-35385 HIGH 8.1 186
CVE-2026-35414 HIGH 8.1 186
CVE-2026-35387 MEDIUM 6.5 186
CVE-2026-35388 LOW 2.5 186
CVE-2025-61984 LOW 3.6 152
CVE-2025-61985 LOW 3.6 152
CVE-2022-4900 MEDIUM 5.5 132
CVE-2017-8923 CRITICAL 9.8 130
CVE-2022-31629 MEDIUM 6.5 130
CVE-2022-31628 MEDIUM 5.5 130
CVE-2017-9225 CRITICAL 9.8 121
CVE-2019-9641 CRITICAL 9.8 121
CVE-2017-7963 HIGH 7.5 121
CVE-2017-9229 HIGH 7.5 121
CVE-2018-19395 HIGH 7.5 121
CVE-2018-19396 HIGH 7.5 121
CVE-2019-9637 HIGH 7.5 121
CVE-2019-9638 HIGH 7.5 121
CVE-2019-9639 HIGH 7.5 121
CVE-2017-7272 HIGH 7.4 121
CVE-2015-9253 MEDIUM 6.5 121
CVE-2025-26465 MEDIUM 6.8 80
CVE-2025-32728 LOW 3.8 80
CVE-2026-106585 MEDIUM 6.5 63
CVE-2026-106552 MEDIUM 4.2 63
CVE-2026-106582 LOW 3.7 63
CVE-2026-106587 LOW 3.6 63
CVE-2026-106588 LOW 3.1 63
CVE-2026-106589 LOW 2.9 63
CVE-2026-106583 LOW 2.5 63
CVE-2026-106584 LOW 2.5 63
CVE-2026-106586 LOW 2.5 63
CVE-2026-106553 LOW 2.2 63
CVE-2026-106555 LOW 2.2 63
CVE-2023-44487 HIGH 7.5 known exploited 35
CVE-2025-23419 MEDIUM 5.3 34
CVE-2023-51385 MEDIUM 6.5 32
CVE-2023-48795 MEDIUM 5.9 32
CVE-2023-38408 CRITICAL 9.8 28

The 50 found on the most hosts, of 360 CVEs.

Most exposed hosts

IPExploitedCVEs
23.106.37.172 3 108 CVEs
23.106.37.29 2 141 CVEs
81.17.57.245 2 123 CVEs
23.106.35.175 1 113 CVEs
173.208.48.226 1 81 CVEs
23.106.33.134 1 81 CVEs
23.106.35.180 1 81 CVEs
81.17.57.181 1 51 CVEs
23.106.35.152 1 35 CVEs
23.106.37.153 1 34 CVEs
23.81.33.115 1 19 CVEs
23.81.35.16 1 19 CVEs
23.81.35.17 1 19 CVEs
23.81.35.18 1 19 CVEs
23.81.35.19 1 19 CVEs
23.81.35.20 1 19 CVEs
23.81.35.21 1 19 CVEs
23.81.35.22 1 19 CVEs
23.81.35.23 1 19 CVEs
23.81.35.24 1 19 CVEs
23.81.35.25 1 19 CVEs
23.81.35.26 1 19 CVEs
23.81.35.27 1 19 CVEs
23.81.35.28 1 19 CVEs
23.81.35.29 1 19 CVEs
23.81.35.30 1 19 CVEs
23.81.35.31 1 19 CVEs
23.81.35.32 1 19 CVEs
23.81.35.33 1 19 CVEs
23.81.35.34 1 19 CVEs
23.81.35.35 1 19 CVEs
23.81.35.9 1 19 CVEs
23.81.33.143 1 17 CVEs
23.81.33.151 1 17 CVEs
173.208.50.220 1 17 CVEs
173.208.48.90 1 13 CVEs
95.168.187.179 1 13 CVEs
23.106.58.9 1 11 CVEs
23.106.238.226 1 5 CVEs
23.106.238.70 1 5 CVEs
23.106.39.120 1 5 CVEs
23.106.33.99 1 4 CVEs
23.81.33.227 1 2 CVEs
23.81.33.94 0 60 CVEs
23.81.33.95 0 60 CVEs
23.81.33.97 0 60 CVEs
23.106.238.129 0 52 CVEs
23.106.238.134 0 52 CVEs
23.106.238.136 0 52 CVEs
23.106.238.148 0 52 CVEs
23.106.238.149 0 52 CVEs
23.106.238.154 0 52 CVEs
23.106.238.155 0 52 CVEs
23.106.238.185 0 52 CVEs
173.234.21.233 0 44 CVEs
173.234.73.73 0 44 CVEs
173.234.73.74 0 44 CVEs
173.234.73.75 0 44 CVEs
23.106.58.234 0 39 CVEs
23.106.37.149 0 38 CVEs
23.81.35.51 0 37 CVEs
173.208.55.6 0 36 CVEs
23.106.37.167 0 36 CVEs
23.106.37.76 0 36 CVEs
23.106.39.48 0 36 CVEs
23.81.33.235 0 35 CVEs
173.208.48.224 0 35 CVEs
23.106.56.20 0 35 CVEs
173.208.50.66 0 33 CVEs
23.81.33.203 0 33 CVEs
23.81.35.194 0 33 CVEs
173.208.48.41 0 32 CVEs
173.208.55.12 0 32 CVEs
173.208.55.2 0 32 CVEs
173.208.55.3 0 32 CVEs
23.106.33.113 0 32 CVEs
23.106.33.115 0 32 CVEs
23.106.37.170 0 32 CVEs
173.208.48.241 0 30 CVEs
173.208.52.136 0 30 CVEs
173.234.73.66 0 30 CVEs
23.106.236.75 0 30 CVEs
23.106.236.84 0 30 CVEs
23.106.238.204 0 30 CVEs
23.106.33.226 0 30 CVEs
23.106.35.216 0 30 CVEs
23.106.35.240 0 30 CVEs
23.106.37.122 0 30 CVEs
23.106.37.66 0 30 CVEs
23.106.37.93 0 30 CVEs
23.106.39.206 0 30 CVEs
23.106.39.207 0 30 CVEs
23.106.39.215 0 30 CVEs
23.106.56.47 0 30 CVEs
23.106.62.11 0 30 CVEs
23.106.62.8 0 30 CVEs
23.106.62.9 0 30 CVEs
23.19.59.55 0 30 CVEs
23.106.238.118 0 29 CVEs
23.106.58.227 0 29 CVEs

Known exploited first, then by the number of CVEs.

Showing the first 100 of 873. Complete lists will be available to registered users.

Where its hosts are

CountryHostsWith CVEs
United Kingdom GB 8 572 873
Japan JP 1 012 0
France FR 506 0
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