Network

Fiber Optics Bulgaria OOD

AS42459registered in Bulgaria (BG)hosts in 1 country

As of 2026-10-30, Fiber Optics Bulgaria OOD (AS42459, registered in Bulgaria) had 749 hosts seen in 1 country; 23 of them with known CVEs (89 distinct, 3 known to be exploited). It announces 5 IPv4 prefixes and 1 IPv6 prefix (9 216 IPv4 addresses, 9 481st by address space).

Known CVEs in this network

749hosts seen

23hosts with known CVEs

89distinct CVEs

3known exploited

CVEs by severity: CRITICAL 8 HIGH 29 MEDIUM 40 LOW 12

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.

Counted 2026-10-30 04:20 UTC

Organisation: Fiber Optics Bulgaria
Network type: Network service provider (transit) · peering policy Open
Website: http://www.fobul.net
Registry: RIPE NCC · Bulgaria BG · allocated 2007-02-23
Announced prefixes: 5 IPv4 · 1 IPv6 See them
IPv4 address space: 9 216 addresses · 9 481st of 87 657 networks by size
Rank by exposure: 5 788th by hosts with known CVEs Ranking
Exchange points: 1

Routing

Most common CVEs in this network

CVE	Hosts
CVE-2018-21027 CRITICAL 9.8	17
CVE-2018-21028 HIGH 7.5	17
CVE-2022-45956 MEDIUM 5.3	17
CVE-2009-4496 MEDIUM 5.0	17
CVE-2023-38408 CRITICAL 9.8	5
CVE-2026-60002 CRITICAL 9.4	5
CVE-2026-35385 HIGH 8.1	5
CVE-2026-35414 HIGH 8.1	5
CVE-2026-106583 HIGH 7.8	5
CVE-2026-106553 HIGH 7.5	5
CVE-2026-106555 HIGH 7.5	5
CVE-2026-59999 HIGH 7.5	5
CVE-2026-60000 HIGH 7.5	5
CVE-2023-51385 MEDIUM 6.5	5
CVE-2026-106552 MEDIUM 6.5	5
CVE-2026-106585 MEDIUM 6.5	5
CVE-2026-35387 MEDIUM 6.5	5
CVE-2026-59998 MEDIUM 6.5	5
CVE-2026-60001 MEDIUM 6.5	5
CVE-2023-48795 MEDIUM 5.9	5
CVE-2026-59995 MEDIUM 5.4	5
CVE-2026-59996 MEDIUM 5.4	5
CVE-2026-59997 MEDIUM 5.4	5
CVE-2026-73282 MEDIUM 4.8	5
CVE-2026-106586 MEDIUM 4.3	5
CVE-2026-106582 LOW 3.7	5
CVE-2025-61984 LOW 3.6	5
CVE-2025-61985 LOW 3.6	5
CVE-2026-73281 LOW 3.5	5
CVE-2026-106584 LOW 3.3	5
CVE-2026-106587 LOW 3.3	5
CVE-2026-106588 LOW 3.1	5
CVE-2026-106589 LOW 2.9	5
CVE-2026-35388 LOW 2.5	5
CVE-2026-73283 LOW 2.5	5
CVE-2020-15778 HIGH 7.4	3
CVE-2021-41617 HIGH 7.0	3
CVE-2025-26465 MEDIUM 6.8	3
CVE-2016-20012 MEDIUM 5.3	3
CVE-2025-32728 LOW 3.8	3
CVE-2021-36368 LOW 3.7	3
CVE-2023-44487 HIGH 7.5 known exploited	2
CVE-2023-28531 CRITICAL 9.8	2
CVE-2024-6387 HIGH 8.1	2
CVE-2022-41741 HIGH 7.8	2
CVE-2022-41742 HIGH 7.1	2
CVE-2020-14145 MEDIUM 5.9	2
CVE-2023-51384 MEDIUM 5.5	2
CVE-2025-23419 MEDIUM 5.3	2
CVE-2026-109618 CRITICAL 9.8 known exploited	1

The 50 found on the most hosts, of 89 CVEs.

Most exposed hosts

IP	Country	Exploited	CVEs
212.45.66.246	Bulgaria BG	3	48 CVEs
212.45.66.247	Bulgaria BG	1	7 CVEs
212.45.73.106	Bulgaria BG	0	63 CVEs
212.45.64.13	Bulgaria BG	0	40 CVEs
212.45.66.3	Bulgaria BG	0	36 CVEs
212.45.78.224	Bulgaria BG	0	35 CVEs
212.45.69.3	Bulgaria BG	0	4 CVEs
79.134.56.11	Bulgaria BG	0	4 CVEs
79.134.56.117	Bulgaria BG	0	4 CVEs
79.134.56.211	Bulgaria BG	0	4 CVEs
79.134.56.26	Bulgaria BG	0	4 CVEs
79.134.56.74	Bulgaria BG	0	4 CVEs
79.134.56.91	Bulgaria BG	0	4 CVEs
79.134.56.94	Bulgaria BG	0	4 CVEs
79.134.56.98	Bulgaria BG	0	4 CVEs
79.134.61.214	Bulgaria BG	0	4 CVEs
79.134.61.230	Bulgaria BG	0	4 CVEs
79.134.63.132	Bulgaria BG	0	4 CVEs
79.134.63.23	Bulgaria BG	0	4 CVEs
79.134.63.253	Bulgaria BG	0	4 CVEs
79.134.63.39	Bulgaria BG	0	4 CVEs
79.134.63.61	Bulgaria BG	0	4 CVEs
79.134.63.94	Bulgaria BG	0	4 CVEs

Known exploited first, then by the number of CVEs.

Where its hosts are

Country	Hosts	With CVEs
Bulgaria BG	749	23

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