Network
Level 3 Parent, LLC
AS3356registered in United States (US)hosts in 44 countries
As of 2026-10-07, Level 3 Parent, LLC (AS3356, registered in United States) had 89 852 hosts seen in 44 countries; 1 538 of them with known CVEs (1 673 distinct, 11 known to be exploited). It announces 924 IPv4 prefixes and 128 IPv6 prefixes (28 862 976 IPv4 addresses, 16th by address space).
Known CVEs in this network
CVEs by severity: CRITICAL 226 HIGH 534 MEDIUM 828 LOW 69 UNRATED 16
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: 766 hosts with CVEs only on distribution builds whose fix may be backported.
Counted 2026-10-07 03:22 UTC
- Organisation
- Lumen Technologies Inc
- Network type
- Network service provider (transit) · peering policy Restrictive
- Website
- http://www.lumen.com
- Registry
- ARIN · United States US · allocated 2000-03-10
- Announced prefixes
- 924 IPv4 · 128 IPv6 See them
- IPv4 address space
- 28 862 976 addresses · 16th of 87 237 networks by size
- Rank by exposure
- 330th by hosts with known CVEs Ranking
- Exchange points
- 3
Routing
Most common CVEs in this network
| CVE | Hosts |
|---|---|
| CVE-2026-73282 MEDIUM 4.8 | 1 079 |
| CVE-2026-73281 LOW 3.5 | 1 079 |
| CVE-2026-73283 LOW 2.5 | 1 079 |
| CVE-2026-60002 HIGH 7.7 | 1 067 |
| CVE-2026-60000 HIGH 7.5 | 1 067 |
| CVE-2026-59998 MEDIUM 6.5 | 1 067 |
| CVE-2026-60001 MEDIUM 6.5 | 1 067 |
| CVE-2026-59999 MEDIUM 5.9 | 1 067 |
| CVE-2026-59995 MEDIUM 5.4 | 1 067 |
| CVE-2026-59996 MEDIUM 5.4 | 1 067 |
| CVE-2026-59997 MEDIUM 5.4 | 1 067 |
| CVE-2026-35385 HIGH 8.1 | 919 |
| CVE-2026-35414 HIGH 8.1 | 919 |
| CVE-2026-35387 MEDIUM 6.5 | 919 |
| CVE-2026-35388 LOW 2.5 | 919 |
| CVE-2025-61984 LOW 3.6 | 854 |
| CVE-2025-61985 LOW 3.6 | 854 |
| CVE-2025-32728 LOW 3.8 | 620 |
| CVE-2025-26465 MEDIUM 6.8 | 612 |
| CVE-2023-48795 MEDIUM 5.9 | 460 |
| CVE-2023-51385 MEDIUM 6.5 | 452 |
| CVE-2023-38408 CRITICAL 9.8 | 433 |
| CVE-2021-36368 LOW 3.7 | 380 |
| CVE-2016-20012 MEDIUM 5.3 | 373 |
| CVE-2021-41617 HIGH 7.0 | 323 |
| CVE-2020-15778 HIGH 7.4 | 294 |
| CVE-2020-14145 MEDIUM 5.9 | 261 |
| CVE-2024-6387 HIGH 8.1 | 250 |
| CVE-2019-6109 MEDIUM 6.8 | 245 |
| CVE-2019-6111 MEDIUM 5.9 | 245 |
| CVE-2018-20685 MEDIUM 5.3 | 245 |
| CVE-2019-6110 MEDIUM 6.8 | 237 |
| CVE-2018-15473 MEDIUM 5.3 | 225 |
| CVE-2018-15919 MEDIUM 5.3 | 210 |
| CVE-2017-15906 MEDIUM 5.3 | 205 |
| CVE-2025-23419 MEDIUM 5.3 | 176 |
| CVE-2025-26466 MEDIUM 5.9 | 153 |
| CVE-2023-44487 HIGH 7.5 known exploited | 147 |
| CVE-2024-39894 HIGH 7.5 | 136 |
| CVE-2022-41741 HIGH 7.8 | 102 |
| CVE-2022-41742 HIGH 7.1 | 102 |
| CVE-2021-3618 HIGH 7.4 | 101 |
| CVE-2016-10708 HIGH 7.5 | 92 |
| CVE-2016-10012 HIGH 7.8 | 90 |
| CVE-2016-10009 HIGH 7.3 | 90 |
| CVE-2016-10011 MEDIUM 6.2 | 90 |
| CVE-2016-10010 HIGH 7.0 | 89 |
| CVE-2026-93546 HIGH 8.8 | 82 |
| CVE-2015-8325 HIGH 7.8 | 75 |
| CVE-2016-6515 HIGH 7.5 | 75 |
The 50 found on the most hosts, of 1 673 CVEs.
Most exposed hosts
Known exploited first, then by the number of CVEs.
Showing the first 100 of 1 538. Complete lists will be available to registered users.
Where its hosts are
| Country | Hosts | With CVEs |
|---|---|---|
| United States US | 69 590 | 1 083 |
| Germany DE | 4 752 | 209 |
| Brazil BR | 2 535 | 62 |
| Belgium BE | 323 | 32 |
| United Kingdom GB | 1 809 | 31 |
| Ecuador EC | 342 | 28 |
| France FR | 2 331 | 26 |
| Argentina AR | 588 | 14 |
| Mexico MX | 442 | 10 |
| Netherlands NL | 2 548 | 6 |
| Colombia CO | 493 | 6 |
| Switzerland CH | 95 | 6 |
| Italy IT | 279 | 5 |
| Sweden SE | 96 | 4 |
| Poland PL | 250 | 3 |
| Peru PE | 474 | 2 |
| Spain ES | 323 | 2 |
| Singapore SG | 208 | 2 |
| Chile CL | 139 | 2 |
| Ireland IE | 90 | 1 |
| Panama PA | 70 | 1 |
| Romania RO | 61 | 1 |
| Czechia CZ | 26 | 1 |
| Croatia HR | 18 | 1 |
| Norway NO | 1 077 | 0 |
| Australia AU | 325 | 0 |
| Japan JP | 138 | 0 |
| Canada CA | 102 | 0 |
| Austria AT | 64 | 0 |
| Denmark DK | 52 | 0 |