Network
firstcolo GmbH
AS44066registered in Germany (DE)hosts in 8 countries
As of 2026-10-11, firstcolo GmbH (AS44066, registered in Germany) had 8 474 hosts seen in 8 countries; 1 274 of them with known CVEs (612 distinct, 5 known to be exploited). It announces 53 IPv4 prefixes and 16 IPv6 prefixes (162 304 IPv4 addresses, 1 288th by address space).
Known CVEs in this network
CVEs by severity: CRITICAL 108 HIGH 248 MEDIUM 224 LOW 32
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: 2 hosts with CVEs only from an older observation (software reported earlier, no service of that kind open now). Not counted: 195 hosts with CVEs only on distribution builds whose fix may be backported.
Counted 2026-10-11 04:20 UTC
- Organisation
- firstcolo GmbH
- Network type
- Network service provider (transit) · peering policy Open
- Website
- https://firstcolo.net
- Registry
- RIPE NCC · Germany DE · allocated 2007-11-13
- Announced prefixes
- 53 IPv4 · 16 IPv6 See them
- IPv4 address space
- 162 304 addresses · 1 288th of 87 288 networks by size
- Rank by exposure
- 401st by hosts with known CVEs Ranking
- Exchange points
- 3
Routing
Most common CVEs in this network
| CVE | Hosts |
|---|---|
| CVE-2026-106585 MEDIUM 6.5 | 1 116 |
| CVE-2026-106552 MEDIUM 4.2 | 1 116 |
| CVE-2026-106582 LOW 3.7 | 1 116 |
| CVE-2026-106587 LOW 3.3 | 1 116 |
| CVE-2026-106583 LOW 2.5 | 1 116 |
| CVE-2026-106584 LOW 2.5 | 1 116 |
| CVE-2026-106586 LOW 2.5 | 1 116 |
| CVE-2026-106553 LOW 2.2 | 1 116 |
| CVE-2026-106555 LOW 2.2 | 1 116 |
| CVE-2026-60002 HIGH 7.7 | 1 103 |
| CVE-2026-60000 HIGH 7.5 | 1 103 |
| CVE-2026-59998 MEDIUM 6.5 | 1 103 |
| CVE-2026-60001 MEDIUM 6.5 | 1 103 |
| CVE-2026-59999 MEDIUM 5.9 | 1 103 |
| CVE-2026-59995 MEDIUM 5.4 | 1 103 |
| CVE-2026-59996 MEDIUM 5.4 | 1 103 |
| CVE-2026-59997 MEDIUM 5.4 | 1 103 |
| CVE-2026-73282 MEDIUM 4.8 | 1 087 |
| CVE-2026-73281 LOW 3.5 | 1 087 |
| CVE-2026-73283 LOW 2.5 | 1 087 |
| CVE-2026-106588 LOW 3.1 | 927 |
| CVE-2026-106589 LOW 2.9 | 927 |
| CVE-2026-35385 HIGH 8.1 | 482 |
| CVE-2026-35414 HIGH 8.1 | 482 |
| CVE-2026-35387 MEDIUM 6.5 | 482 |
| CVE-2026-35388 LOW 2.5 | 482 |
| CVE-2025-61984 LOW 3.6 | 460 |
| CVE-2025-61985 LOW 3.6 | 460 |
| CVE-2025-32728 LOW 3.8 | 395 |
| CVE-2025-26465 MEDIUM 6.8 | 317 |
| CVE-2023-51385 MEDIUM 6.5 | 230 |
| CVE-2023-48795 MEDIUM 5.9 | 230 |
| CVE-2023-38408 CRITICAL 9.8 | 223 |
| CVE-2016-20012 MEDIUM 5.3 | 119 |
| CVE-2020-15778 HIGH 7.4 | 95 |
| CVE-2020-14145 MEDIUM 5.9 | 94 |
| CVE-2019-6110 MEDIUM 6.8 | 91 |
| CVE-2018-15919 MEDIUM 5.3 | 89 |
| CVE-2024-6387 HIGH 8.1 | 87 |
| CVE-2026-93546 HIGH 8.8 | 86 |
| CVE-2026-56154 CRITICAL 9.8 | 82 |
| CVE-2026-57941 CRITICAL 9.8 | 82 |
| CVE-2026-59797 CRITICAL 9.8 | 82 |
| CVE-2026-73636 HIGH 8.1 | 82 |
| CVE-2026-46729 HIGH 7.5 | 82 |
| CVE-2026-48005 HIGH 7.5 | 82 |
| CVE-2026-56153 HIGH 7.5 | 82 |
| CVE-2026-56449 HIGH 7.5 | 82 |
| CVE-2026-59685 HIGH 7.5 | 82 |
| CVE-2026-63045 HIGH 7.5 | 82 |
The 50 found on the most hosts, of 612 CVEs.
Most exposed hosts
Known exploited first, then by the number of CVEs.
Showing the first 100 of 1 274. Complete lists will be available to registered users.
Where its hosts are
| Country | Hosts | With CVEs |
|---|---|---|
| Germany DE | 6 905 | 1 196 |
| Austria AT | 83 | 65 |
| Switzerland CH | 16 | 12 |
| Italy IT | 11 | 1 |
| Netherlands NL | 892 | 0 |
| Czechia CZ | 251 | 0 |
| United States US | 196 | 0 |
| Åland Islands AX | 120 | 0 |