OSN

Network

MAINFRAME & CYBERNETIC SYSTEMS LIMITED

AS25577registered in United Kingdom (GB)hosts in 2 countries

As of 2026-10-26, MAINFRAME & CYBERNETIC SYSTEMS LIMITED (AS25577, registered in United Kingdom) had 772 hosts seen in 2 countries; 63 of them with known CVEs (443 distinct, 3 known to be exploited). It announces 54 IPv4 prefixes and 1 IPv6 prefix (50 944 IPv4 addresses, 3 975th by address space).

Known CVEs in this network

772hosts seen
63hosts with known CVEs
443distinct CVEs
3known exploited

CVEs by severity: CRITICAL 76 HIGH 180 MEDIUM 163 LOW 23 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: 166 hosts with CVEs only on distribution builds whose fix may be backported.

Counted 2026-10-26 04:20 UTC

Organisation
MAINFRAME & CYBERNETIC SYSTEMS LIMITED
Network type
Network service provider (transit) · peering policy Selective
Website
http://bec.uk
Registry
RIPE NCC · United Kingdom GB · allocated 2003-01-15
Announced prefixes
54 IPv4 · 1 IPv6 See them
IPv4 address space
50 944 addresses · 3 975th of 87 620 networks by size
Rank by exposure
3 263rd by hosts with known CVEs Ranking
Exchange points
3

Routing

Most common CVEs in this network

CVEHosts
CVE-2026-106583 HIGH 7.8 36
CVE-2026-106553 HIGH 7.5 36
CVE-2026-106555 HIGH 7.5 36
CVE-2026-106552 MEDIUM 6.5 36
CVE-2026-106585 MEDIUM 6.5 36
CVE-2026-106586 MEDIUM 4.3 36
CVE-2026-106582 LOW 3.7 36
CVE-2026-106584 LOW 3.3 36
CVE-2026-106587 LOW 3.3 36
CVE-2026-106588 LOW 3.1 26
CVE-2026-106589 LOW 2.9 26
CVE-2026-46729 HIGH 7.5 23
CVE-2026-48005 HIGH 7.5 23
CVE-2026-56153 HIGH 7.5 23
CVE-2026-56449 HIGH 7.5 23
CVE-2026-42528 MEDIUM 4.3 23
CVE-2026-42356 LOW 3.7 23
CVE-2026-60002 HIGH 7.7 20
CVE-2026-60000 HIGH 7.5 20
CVE-2026-59998 MEDIUM 6.5 20
CVE-2026-60001 MEDIUM 6.5 20
CVE-2026-59999 MEDIUM 5.9 20
CVE-2026-59995 MEDIUM 5.4 20
CVE-2026-59996 MEDIUM 5.4 20
CVE-2026-59997 MEDIUM 5.4 20
CVE-2026-73282 MEDIUM 4.8 20
CVE-2026-73281 LOW 3.5 20
CVE-2026-73283 LOW 2.5 20
CVE-2026-35385 HIGH 8.1 13
CVE-2026-35414 HIGH 8.1 13
CVE-2026-35387 MEDIUM 6.5 13
CVE-2026-35388 LOW 2.5 13
CVE-2025-61984 LOW 3.6 12
CVE-2025-61985 LOW 3.6 12
CVE-2023-48795 MEDIUM 5.9 9
CVE-2023-38408 CRITICAL 9.8 8
CVE-2023-51385 MEDIUM 6.5 8
CVE-2025-26465 MEDIUM 6.8 7
CVE-2016-20012 MEDIUM 5.3 7
CVE-2021-36368 LOW 3.7 7
CVE-2016-10708 HIGH 7.5 5
CVE-2020-15778 HIGH 7.4 5
CVE-2021-41617 HIGH 7.0 5
CVE-2019-6109 MEDIUM 6.8 5
CVE-2019-6111 MEDIUM 5.9 5
CVE-2020-14145 MEDIUM 5.9 5
CVE-2018-15473 MEDIUM 5.3 5
CVE-2018-20685 MEDIUM 5.3 5
CVE-2025-32728 LOW 3.8 5
CVE-2016-1908 CRITICAL 9.8 4

The 50 found on the most hosts, of 443 CVEs.

Most exposed hosts

IPExploitedCVEs
84.45.78.210 2 322 CVEs
84.45.78.222 2 322 CVEs
84.45.68.49 1 25 CVEs
109.68.64.15 1 6 CVEs
84.45.68.31 0 62 CVEs
84.45.68.62 0 62 CVEs
185.229.21.39 0 60 CVEs
81.27.75.190 0 57 CVEs
85.159.88.220 0 57 CVEs
84.45.97.201 0 40 CVEs
84.45.68.42 0 33 CVEs
85.159.88.214 0 30 CVEs
5.133.185.50 0 29 CVEs
84.45.18.69 0 29 CVEs
84.45.39.150 0 27 CVEs
185.229.21.24 0 26 CVEs
185.229.21.127 0 20 CVEs
185.229.21.128 0 20 CVEs
185.229.21.34 0 20 CVEs
185.229.21.36 0 20 CVEs
185.229.21.46 0 20 CVEs
185.229.21.78 0 20 CVEs
84.45.47.114 0 14 CVEs
185.229.21.10 0 11 CVEs
185.229.21.11 0 11 CVEs
185.229.21.12 0 11 CVEs
185.229.21.13 0 11 CVEs
185.229.21.14 0 11 CVEs
185.229.21.15 0 11 CVEs
185.229.21.16 0 11 CVEs
185.229.21.17 0 11 CVEs
185.229.21.18 0 11 CVEs
185.229.21.4 0 11 CVEs
185.229.21.5 0 11 CVEs
185.229.21.6 0 11 CVEs
185.229.21.7 0 11 CVEs
185.229.21.8 0 11 CVEs
185.229.21.9 0 11 CVEs
84.45.18.78 0 11 CVEs
5.133.185.10 0 6 CVEs
5.133.185.11 0 6 CVEs
5.133.185.12 0 6 CVEs
5.133.185.13 0 6 CVEs
5.133.185.14 0 6 CVEs
5.133.185.15 0 6 CVEs
5.133.185.16 0 6 CVEs
5.133.185.17 0 6 CVEs
5.133.185.18 0 6 CVEs
5.133.185.19 0 6 CVEs
5.133.185.20 0 6 CVEs
5.133.185.21 0 6 CVEs
5.133.185.22 0 6 CVEs
5.133.185.23 0 6 CVEs
5.133.185.28 0 6 CVEs
5.133.185.29 0 6 CVEs
5.133.185.3 0 6 CVEs
5.133.185.4 0 6 CVEs
5.133.185.5 0 6 CVEs
5.133.185.6 0 6 CVEs
5.133.185.7 0 6 CVEs
5.133.185.8 0 6 CVEs
5.133.185.9 0 6 CVEs
84.45.49.95 0 5 CVEs

Known exploited first, then by the number of CVEs.

Where its hosts are

CountryHostsWith CVEs
United Kingdom GB 763 63
Netherlands NL 9 0
Report an issue with this page