Apache HTTP Server 2.4.23
http_serverevery versioncounted 2026-10-10 04:20 UTC
As of 2026-10-10, 1 619 hosts ran Apache HTTP Server 2.4.23 with at least one known CVE on a service open at their latest check; 124 distinct CVEs match this version.
Known CVEs on hosts running it
1 619hosts with known CVEs
124distinct 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: 27 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 | 1 619 |
| CVE-2021-40438 CRITICAL 9.0 known exploited | 1 619 |
| CVE-2019-0211 HIGH 7.8 known exploited | 1 619 |
| CVE-2017-3167 CRITICAL 9.8 | 1 619 |
| CVE-2017-3169 CRITICAL 9.8 | 1 619 |
| CVE-2017-7679 CRITICAL 9.8 | 1 619 |
| CVE-2018-1312 CRITICAL 9.8 | 1 619 |
| CVE-2021-26691 CRITICAL 9.8 | 1 619 |
| CVE-2021-39275 CRITICAL 9.8 | 1 619 |
| CVE-2021-44790 CRITICAL 9.8 | 1 619 |
| CVE-2022-22720 CRITICAL 9.8 | 1 619 |
| CVE-2022-23943 CRITICAL 9.8 | 1 619 |
| CVE-2022-31813 CRITICAL 9.8 | 1 619 |
| CVE-2023-25690 CRITICAL 9.8 | 1 619 |
| CVE-2024-38474 CRITICAL 9.8 | 1 619 |
| CVE-2024-38476 CRITICAL 9.8 | 1 619 |
| CVE-2026-28780 CRITICAL 9.8 | 1 619 |
| CVE-2017-9788 CRITICAL 9.1 | 1 619 |
| CVE-2019-10082 CRITICAL 9.1 | 1 619 |
| CVE-2022-22721 CRITICAL 9.1 | 1 619 |
| CVE-2022-28615 CRITICAL 9.1 | 1 619 |
| CVE-2022-36760 CRITICAL 9.0 | 1 619 |
| CVE-2026-24072 HIGH 8.8 | 1 619 |
| CVE-2025-58098 HIGH 8.3 | 1 619 |
| CVE-2021-44224 HIGH 8.2 | 1 619 |
| CVE-2016-5387 HIGH 8.1 | 1 619 |
| CVE-2017-15715 HIGH 8.1 | 1 619 |
| CVE-2024-38473 HIGH 8.1 | 1 619 |
| CVE-2006-20001 HIGH 7.5 | 1 619 |
| CVE-2016-0736 HIGH 7.5 | 1 619 |
| CVE-2016-2161 HIGH 7.5 | 1 619 |
| CVE-2016-8740 HIGH 7.5 | 1 619 |
| CVE-2016-8743 HIGH 7.5 | 1 619 |
| CVE-2017-15710 HIGH 7.5 | 1 619 |
| CVE-2017-9798 HIGH 7.5 | 1 619 |
| CVE-2018-1303 HIGH 7.5 | 1 619 |
| CVE-2018-1333 HIGH 7.5 | 1 619 |
| CVE-2018-17199 HIGH 7.5 | 1 619 |
| CVE-2019-0217 HIGH 7.5 | 1 619 |
| CVE-2019-10081 HIGH 7.5 | 1 619 |
| CVE-2019-9517 HIGH 7.5 | 1 619 |
| CVE-2020-11993 HIGH 7.5 | 1 619 |
| CVE-2020-9490 HIGH 7.5 | 1 619 |
| CVE-2021-26690 HIGH 7.5 | 1 619 |
| CVE-2021-33193 HIGH 7.5 | 1 619 |
| CVE-2021-34798 HIGH 7.5 | 1 619 |
| CVE-2022-22719 HIGH 7.5 | 1 619 |
| CVE-2022-26377 HIGH 7.5 | 1 619 |
| CVE-2022-29404 HIGH 7.5 | 1 619 |
| CVE-2022-30556 HIGH 7.5 | 1 619 |
| CVE-2023-31122 HIGH 7.5 | 1 619 |
| CVE-2024-27316 HIGH 7.5 | 1 619 |
| CVE-2024-38472 HIGH 7.5 | 1 619 |
| CVE-2024-38477 HIGH 7.5 | 1 619 |
| CVE-2024-39573 HIGH 7.5 | 1 619 |
| CVE-2024-42516 HIGH 7.5 | 1 619 |
| CVE-2024-43204 HIGH 7.5 | 1 619 |
| CVE-2024-47252 HIGH 7.5 | 1 619 |
| CVE-2025-53020 HIGH 7.5 | 1 619 |
| CVE-2025-59775 HIGH 7.5 | 1 619 |
| CVE-2026-29169 HIGH 7.5 | 1 619 |
| CVE-2026-34059 HIGH 7.5 | 1 619 |
| CVE-2025-49812 HIGH 7.4 | 1 619 |
| CVE-2020-35452 HIGH 7.3 | 1 619 |
| CVE-2023-38709 HIGH 7.3 | 1 619 |
| CVE-2025-65082 MEDIUM 6.5 | 1 619 |
| CVE-2026-33523 MEDIUM 6.5 | 1 619 |
| CVE-2024-24795 MEDIUM 6.3 | 1 619 |
| CVE-2016-4975 MEDIUM 6.1 | 1 619 |
| CVE-2019-10092 MEDIUM 6.1 | 1 619 |
| CVE-2019-10098 MEDIUM 6.1 | 1 619 |
| CVE-2020-1927 MEDIUM 6.1 | 1 619 |
| CVE-2018-11763 MEDIUM 5.9 | 1 619 |
| CVE-2018-1301 MEDIUM 5.9 | 1 619 |
| CVE-2018-1302 MEDIUM 5.9 | 1 619 |
| CVE-2023-45802 MEDIUM 5.9 | 1 619 |
| CVE-2025-66200 MEDIUM 5.4 | 1 619 |
| CVE-2018-1283 MEDIUM 5.3 | 1 619 |
| CVE-2018-17189 MEDIUM 5.3 | 1 619 |
| CVE-2019-0196 MEDIUM 5.3 | 1 619 |
| CVE-2019-0220 MEDIUM 5.3 | 1 619 |
| CVE-2019-17567 MEDIUM 5.3 | 1 619 |
| CVE-2020-11985 MEDIUM 5.3 | 1 619 |
| CVE-2020-1934 MEDIUM 5.3 | 1 619 |
| CVE-2022-28614 MEDIUM 5.3 | 1 619 |
| CVE-2022-37436 MEDIUM 5.3 | 1 619 |
| CVE-2026-33007 MEDIUM 5.3 | 1 619 |
| CVE-2026-33857 MEDIUM 5.3 | 1 619 |
| CVE-2026-34032 MEDIUM 5.3 | 1 619 |
| CVE-2026-33006 MEDIUM 4.8 | 1 619 |
| CVE-2026-29167 CRITICAL 9.8 | 1 590 |
| CVE-2026-42535 CRITICAL 9.1 | 1 590 |
| CVE-2026-34355 HIGH 7.5 | 1 590 |
| CVE-2026-34356 HIGH 7.5 | 1 590 |
| CVE-2026-42536 HIGH 7.5 | 1 590 |
| CVE-2026-43951 MEDIUM 6.5 | 1 590 |
| CVE-2026-29170 MEDIUM 6.1 | 1 590 |
| CVE-2026-44119 MEDIUM 5.5 | 1 590 |
| CVE-2026-42528 MEDIUM 4.3 | 1 590 |
| CVE-2026-42356 LOW 3.7 | 1 590 |
Hosts: matches on services open at each host's latest check.