OSN

Network

Rackspace Hosting

AS19994registered in United States (US)hosts in 5 countries

As of 2026-10-11, Rackspace Hosting (AS19994, registered in United States) had 5 411 hosts seen in 5 countries; 831 of them with known CVEs (2 075 distinct, 7 known to be exploited). It announces 67 IPv4 prefixes and 1 IPv6 prefix (537 600 IPv4 addresses, 551st by address space).

Known CVEs in this network

5 411hosts seen
831hosts with known CVEs
2 075distinct CVEs
7known exploited

CVEs by severity: CRITICAL 157 HIGH 476 MEDIUM 1 254 LOW 187 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: 331 hosts with CVEs only on distribution builds whose fix may be backported.

Counted 2026-10-11 04:20 UTC

Organisation
Rackspace Hosting
Registry
ARIN · United States US · allocated 2010-01-15
Announced prefixes
67 IPv4 · 1 IPv6 See them
IPv4 address space
537 600 addresses · 551st of 87 409 networks by size
Rank by exposure
547th by hosts with known CVEs Ranking

Routing

Most common CVEs in this network

CVEHosts
CVE-2026-106585 MEDIUM 6.5 449
CVE-2026-106552 MEDIUM 4.2 449
CVE-2026-106582 LOW 3.7 449
CVE-2026-106587 LOW 3.3 449
CVE-2026-106583 LOW 2.5 449
CVE-2026-106584 LOW 2.5 449
CVE-2026-106586 LOW 2.5 449
CVE-2026-106553 LOW 2.2 449
CVE-2026-106555 LOW 2.2 449
CVE-2026-73282 MEDIUM 4.8 430
CVE-2026-73281 LOW 3.5 430
CVE-2026-73283 LOW 2.5 430
CVE-2026-106588 LOW 3.1 420
CVE-2026-106589 LOW 2.9 420
CVE-2025-26465 MEDIUM 6.8 324
CVE-2025-32728 LOW 3.8 323
CVE-2023-48795 MEDIUM 5.9 310
CVE-2023-51385 MEDIUM 6.5 306
CVE-2023-38408 CRITICAL 9.8 300
CVE-2026-60002 HIGH 7.7 290
CVE-2026-60000 HIGH 7.5 290
CVE-2026-59998 MEDIUM 6.5 290
CVE-2026-60001 MEDIUM 6.5 290
CVE-2026-59999 MEDIUM 5.9 290
CVE-2026-59995 MEDIUM 5.4 290
CVE-2026-59996 MEDIUM 5.4 290
CVE-2026-59997 MEDIUM 5.4 290
CVE-2026-35385 HIGH 8.1 234
CVE-2026-35414 HIGH 8.1 234
CVE-2026-35387 MEDIUM 6.5 234
CVE-2026-35388 LOW 2.5 234
CVE-2025-61984 LOW 3.6 229
CVE-2025-61985 LOW 3.6 229
CVE-2021-41617 HIGH 7.0 202
CVE-2016-20012 MEDIUM 5.3 115
CVE-2021-36368 LOW 3.7 115
CVE-2021-3618 HIGH 7.4 72
CVE-2026-93546 HIGH 8.8 69
CVE-2020-15778 HIGH 7.4 62
CVE-2019-6109 MEDIUM 6.8 60
CVE-2019-6111 MEDIUM 5.9 60
CVE-2018-15473 MEDIUM 5.3 60
CVE-2018-20685 MEDIUM 5.3 60
CVE-2026-42535 CRITICAL 9.1 58
CVE-2026-29170 MEDIUM 6.1 58
CVE-2026-28780 CRITICAL 9.8 57
CVE-2026-24072 HIGH 8.8 57
CVE-2026-29169 HIGH 7.5 57
CVE-2026-34059 HIGH 7.5 57
CVE-2026-33857 MEDIUM 5.3 57

The 50 found on the most hosts, of 2 075 CVEs.

Most exposed hosts

IPExploitedCVEs
104.239.209.149 3 171 CVEs
104.130.74.165 3 110 CVEs
108.166.114.76 2 616 CVEs
50.56.64.142 2 344 CVEs
23.253.204.202 2 322 CVEs
23.253.213.71 2 322 CVEs
67.207.152.105 2 322 CVEs
104.239.209.148 2 118 CVEs
104.130.74.108 2 116 CVEs
104.130.119.23 2 112 CVEs
104.239.198.142 2 112 CVEs
23.253.210.185 2 109 CVEs
50.56.28.38 1 498 CVEs
50.57.233.183 1 292 CVEs
104.130.204.13 1 129 CVEs
50.57.73.218 1 117 CVEs
50.57.31.111 1 114 CVEs
50.56.28.198 1 111 CVEs
50.56.88.161 1 111 CVEs
50.56.92.190 1 111 CVEs
50.57.108.55 1 111 CVEs
50.57.228.210 1 111 CVEs
50.57.49.170 1 111 CVEs
23.253.56.96 1 102 CVEs
104.130.204.99 1 99 CVEs
104.130.74.56 1 99 CVEs
104.130.74.65 1 99 CVEs
23.253.166.29 1 99 CVEs
23.253.173.181 1 99 CVEs
23.253.166.155 1 97 CVEs
104.130.198.229 1 87 CVEs
104.130.70.101 1 82 CVEs
104.130.74.219 1 82 CVEs
104.239.192.191 1 75 CVEs
50.57.11.86 1 67 CVEs
50.57.204.153 1 65 CVEs
104.130.219.10 1 63 CVEs
104.130.219.211 1 63 CVEs
23.253.201.248 1 63 CVEs
104.130.74.115 1 61 CVEs
23.253.175.11 1 61 CVEs
23.253.201.135 1 61 CVEs
50.57.45.218 1 61 CVEs
23.253.173.86 1 58 CVEs
104.130.103.140 1 57 CVEs
50.57.28.202 1 57 CVEs
50.57.15.220 1 54 CVEs
104.130.198.79 1 52 CVEs
104.239.221.96 1 52 CVEs
23.253.56.205 1 52 CVEs
50.57.229.51 1 43 CVEs
23.253.22.62 1 43 CVEs
104.130.204.83 1 41 CVEs
50.56.116.130 1 39 CVEs
50.57.3.158 1 39 CVEs
104.239.221.72 1 28 CVEs
23.253.22.221 1 28 CVEs
104.130.210.156 1 22 CVEs
104.130.210.218 1 22 CVEs
23.253.22.166 1 22 CVEs
50.57.223.139 1 22 CVEs
50.57.221.112 1 17 CVEs
23.253.173.221 1 15 CVEs
50.56.33.137 1 15 CVEs
104.130.108.33 1 14 CVEs
23.253.166.103 1 14 CVEs
23.253.173.214 1 14 CVEs
50.56.52.125 1 14 CVEs
104.130.210.62 1 13 CVEs
104.130.219.22 1 13 CVEs
23.253.56.141 1 13 CVEs
104.130.119.120 1 10 CVEs
104.130.119.16 1 10 CVEs
104.130.204.47 1 7 CVEs
104.130.74.186 1 7 CVEs
104.130.119.191 1 6 CVEs
104.130.199.235 1 6 CVEs
104.130.210.120 1 6 CVEs
104.130.210.138 1 6 CVEs
104.130.70.124 1 6 CVEs
50.57.223.136 1 6 CVEs
50.57.223.137 1 6 CVEs
104.130.204.252 1 5 CVEs
104.130.210.105 1 5 CVEs
104.239.203.56 1 5 CVEs
23.253.166.231 1 5 CVEs
23.253.56.227 1 5 CVEs
23.253.166.10 1 2 CVEs
23.253.213.127 1 2 CVEs
50.57.11.82 1 2 CVEs
50.56.52.153 0 536 CVEs
50.57.48.238 0 498 CVEs
50.57.48.224 0 497 CVEs
104.130.210.75 0 393 CVEs
50.57.89.146 0 264 CVEs
104.130.216.156 0 215 CVEs
104.130.74.168 0 198 CVEs
23.253.56.100 0 187 CVEs
104.130.74.151 0 167 CVEs
23.253.22.219 0 167 CVEs

Known exploited first, then by the number of CVEs.

Showing the first 100 of 831. Complete lists will be available to registered users.

Where its hosts are

CountryHostsWith CVEs
United States US 5 329 827
Mexico MX 39 4
New Zealand NZ 28 0
Canada CA 9 0
Singapore SG 6 0
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