Apache HTTP Server 2.4.51
http_serverevery versioncounted 2026-10-08 03:20 UTC
As of 2026-10-08, 1 616 hosts ran Apache HTTP Server 2.4.51 with at least one known CVE on a service open at their latest check; 84 distinct CVEs match this version.
Known CVEs on hosts running it
1 616hosts with known CVEs
84distinct CVEs
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: 46 hosts with CVEs of it only from an older observation (software reported earlier, no service of that kind open now).
Most common CVEs
| CVE | Hosts |
|---|---|
| CVE-2024-38475 CRITICAL 9.1 known exploited | 1 616 |
| CVE-2021-44790 CRITICAL 9.8 | 1 616 |
| CVE-2022-22720 CRITICAL 9.8 | 1 616 |
| CVE-2022-23943 CRITICAL 9.8 | 1 616 |
| CVE-2022-31813 CRITICAL 9.8 | 1 616 |
| CVE-2023-25690 CRITICAL 9.8 | 1 616 |
| CVE-2024-38474 CRITICAL 9.8 | 1 616 |
| CVE-2024-38476 CRITICAL 9.8 | 1 616 |
| CVE-2026-28780 CRITICAL 9.8 | 1 616 |
| CVE-2022-22721 CRITICAL 9.1 | 1 616 |
| CVE-2022-28615 CRITICAL 9.1 | 1 616 |
| CVE-2025-23048 CRITICAL 9.1 | 1 616 |
| CVE-2022-36760 CRITICAL 9.0 | 1 616 |
| CVE-2026-24072 HIGH 8.8 | 1 616 |
| CVE-2025-58098 HIGH 8.3 | 1 616 |
| CVE-2021-44224 HIGH 8.2 | 1 616 |
| CVE-2024-38473 HIGH 8.1 | 1 616 |
| CVE-2006-20001 HIGH 7.5 | 1 616 |
| CVE-2022-22719 HIGH 7.5 | 1 616 |
| CVE-2022-26377 HIGH 7.5 | 1 616 |
| CVE-2022-29404 HIGH 7.5 | 1 616 |
| CVE-2022-30556 HIGH 7.5 | 1 616 |
| CVE-2023-27522 HIGH 7.5 | 1 616 |
| CVE-2023-31122 HIGH 7.5 | 1 616 |
| CVE-2024-27316 HIGH 7.5 | 1 616 |
| CVE-2024-38472 HIGH 7.5 | 1 616 |
| CVE-2024-38477 HIGH 7.5 | 1 616 |
| CVE-2024-39573 HIGH 7.5 | 1 616 |
| CVE-2024-42516 HIGH 7.5 | 1 616 |
| CVE-2024-43204 HIGH 7.5 | 1 616 |
| CVE-2024-47252 HIGH 7.5 | 1 616 |
| CVE-2025-49630 HIGH 7.5 | 1 616 |
| CVE-2025-53020 HIGH 7.5 | 1 616 |
| CVE-2025-55753 HIGH 7.5 | 1 616 |
| CVE-2025-59775 HIGH 7.5 | 1 616 |
| CVE-2026-29169 HIGH 7.5 | 1 616 |
| CVE-2026-34059 HIGH 7.5 | 1 616 |
| CVE-2025-49812 HIGH 7.4 | 1 616 |
| CVE-2023-38709 HIGH 7.3 | 1 616 |
| CVE-2026-29168 HIGH 7.3 | 1 616 |
| CVE-2025-65082 MEDIUM 6.5 | 1 616 |
| CVE-2026-33523 MEDIUM 6.5 | 1 616 |
| CVE-2024-24795 MEDIUM 6.3 | 1 616 |
| CVE-2023-45802 MEDIUM 5.9 | 1 616 |
| CVE-2025-66200 MEDIUM 5.4 | 1 616 |
| CVE-2022-28614 MEDIUM 5.3 | 1 616 |
| CVE-2022-37436 MEDIUM 5.3 | 1 616 |
| CVE-2026-33007 MEDIUM 5.3 | 1 616 |
| CVE-2026-33857 MEDIUM 5.3 | 1 616 |
| CVE-2026-34032 MEDIUM 5.3 | 1 616 |
| CVE-2026-33006 MEDIUM 4.8 | 1 616 |
| CVE-2026-29167 CRITICAL 9.8 | 1 545 |
| CVE-2026-44631 CRITICAL 9.8 | 1 545 |
| CVE-2026-56154 CRITICAL 9.8 | 1 545 |
| CVE-2026-57941 CRITICAL 9.8 | 1 545 |
| CVE-2026-59797 CRITICAL 9.8 | 1 545 |
| CVE-2026-42535 CRITICAL 9.1 | 1 545 |
| CVE-2026-93546 HIGH 8.8 | 1 545 |
| CVE-2026-73636 HIGH 8.1 | 1 545 |
| CVE-2026-34355 HIGH 7.5 | 1 545 |
| CVE-2026-34356 HIGH 7.5 | 1 545 |
| CVE-2026-42536 HIGH 7.5 | 1 545 |
| CVE-2026-48005 HIGH 7.5 | 1 545 |
| CVE-2026-49975 HIGH 7.5 | 1 545 |
| CVE-2026-56153 HIGH 7.5 | 1 545 |
| CVE-2026-56449 HIGH 7.5 | 1 545 |
| CVE-2026-59685 HIGH 7.5 | 1 545 |
| CVE-2026-63045 HIGH 7.5 | 1 545 |
| CVE-2026-63292 HIGH 7.5 | 1 545 |
| CVE-2026-63686 HIGH 7.5 | 1 545 |
| CVE-2026-44185 HIGH 7.3 | 1 545 |
| CVE-2026-44186 HIGH 7.3 | 1 545 |
| CVE-2026-73637 HIGH 7.3 | 1 545 |
| CVE-2026-43951 MEDIUM 6.5 | 1 545 |
| CVE-2026-29170 MEDIUM 6.1 | 1 545 |
| CVE-2026-44119 MEDIUM 5.5 | 1 545 |
| CVE-2026-58415 MEDIUM 5.3 | 1 545 |
| CVE-2026-79768 MEDIUM 5.3 | 1 545 |
| CVE-2026-42528 MEDIUM 4.3 | 1 299 |
| CVE-2026-42356 LOW 3.7 | 1 299 |
| CVE-2026-63718 HIGH 7.5 | 637 |
| CVE-2024-40898 HIGH 7.5 | 386 |
| CVE-2024-43394 HIGH 7.5 | 386 |
| CVE-2022-28330 MEDIUM 5.3 | 386 |
Hosts: matches on services open at each host's latest check.