Http Server
Vendor:
First CVE: Mar 20, 1996 · Active for 30 years
351
Total CVEs
More Total CVEs than 100% of tracked products
11.3
Avg CVEs / Year
Higher CVE frequency than 96% of tracked products
6.3
Avg CVSS
Higher Avg CVSS than 26% of tracked products
1.4%
KEV Rate
Higher KEV Rate than 96% of tracked products
Trends Over Time
The number and severity of CVEs published that impact Http Server over time
Volume of CVEsAvg CVSS Base Score
First CVE
Mar 20, 1996
30 years ago
Most Recent CVE
Jun 8, 2026
48 days ago
CVE Severity & Scoring
Http Server351 CVEs
52%
35%
9%
All CVEs352,713 CVEs
45%
40%
11%
LowMediumHighCritical
Attack Vector
Local6 (1.7%)
Network148 (42.2%)
Unknown196 (55.8%)
Physical0 (0.0%)
Adjacent Network1 (0.3%)
Attack Complexity
Low139 (39.6%)
High16 (4.6%)
Unknown196 (55.8%)
User Interaction
None146 (41.6%)
Unknown196 (55.8%)
Required9 (2.6%)
Privileges Required
Low17 (4.8%)
High1 (0.3%)
None137 (39.0%)
Unknown196 (55.8%)
Top CVEs
Signals from CVEs in this product scope (351 CVEs).
351 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2021-42013CRITICAL It was found that the fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient. An attacker could use a path traversal attack to map URLs to files outside the directori | Oct 7, 2021 | 9.8 | 99 | YES | YES |
CVE-2021-41773CRITICAL A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories con | Oct 5, 2021 | 9.8 | 99 | YES | YES |
CVE-2024-38475CRITICAL Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the se | Jul 1, 2024 | 9.1 | 97 | YES | YES |
CVE-2021-40438CRITICAL A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier. | Sep 16, 2021 | 9.0 | 97 | YES | YES |
CVE-2019-0211HIGH In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by | Apr 8, 2019 | 7.8 | 93 | YES | YES |
CVE-2011-3192HIGH The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumptio | Aug 29, 2011 | 7.8 | 92 | NO | YES |
CVE-2010-0425HIGH modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 through 2.0.63, 2.2.0 through 2.2.14, and 2.3.x before 2.3.7, when running on Windows, does not ensure | Mar 5, 2010 | 10.0 | 91 | NO | YES |
CVE-2021-44790CRITICAL A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an explo | Dec 20, 2021 | 9.8 | 88 | NO | YES |
CVE-2017-9798HIGH Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigura | Sep 18, 2017 | 7.5 | 88 | NO | YES |
CVE-2006-3747HIGH Off-by-one error in the ldap scheme handling in the Rewrite module (mod_rewrite) in Apache 1.3 from 1.3.28, 2.0.46 and other versions before 2.0.59, and 2.2, when RewriteEngine is | Jul 28, 2006 | 7.6 | 87 | NO | YES |
Exploit Exposure
Signals from CVEs in this product scope (351 CVEs).
CISA KEV
5 CVEs
1.4% of CVEs· 96th percentile
Metasploit
10 CVEs
2.8% of CVEs· 96th percentile
Nuclei
12 CVEs
3.4% of CVEs· 97th percentile
ExploitDB
65 CVEs
18.5% of CVEs· 89th percentile
Social Chatter
Signals from CVEs in this product scope (351 CVEs).
Media Mentions
Signals from CVEs in this product scope (351 CVEs).
Top CNAs Publishing CVEs For Http Server
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 2.4.9 | 12 | 6.2 | 32.1% | 0 | 3 |
| 2.4.8 | 5 | 5.7 | 28.1% | 0 | 1 |
| 2.4.7 | 12 | 6.2 | 32.1% | 0 | 3 |
| 2.4.66 | 1 | 8.8 | 49.7% | 0 | 1 |
| 2.4.64 | 1 | 6.3 | 0.7% | 0 | 0 |
| 2.4.61 | 1 | 5.3 | 4.1% | 0 | 0 |
| 2.4.60 | 2 | 5.8 | 2.5% | 0 | 0 |
| 2.4.6 | 13 | 6.0 | 30.5% | 0 | 3 |
| 2.4.53 | 1 | 7.5 | 90.4% | 0 | 0 |
| 2.4.50 | 1 | 9.8 | 100.0% | 1 | 1 |
| 2.4.49 | 3 | 9.0 | 75.0% | 2 | 2 |
| 2.4.47 | 1 | 7.5 | 51.2% | 0 | 0 |
| 2.4.4 | 9 | 6.1 | 31.0% | 0 | 2 |
| 2.4.38 | 2 | 7.3 | 31.7% | 0 | 0 |
| 2.4.37 | 4 | 6.9 | 35.7% | 0 | 0 |
| 2.4.35 | 2 | 6.3 | 36.1% | 0 | 0 |
| 2.4.34 | 2 | 6.3 | 36.1% | 0 | 0 |
| 2.4.33 | 4 | 6.9 | 35.3% | 0 | 1 |
| 2.4.30 | 1 | 5.3 | 19.4% | 0 | 0 |
| 2.4.3 | 13 | 6.0 | 30.4% | 0 | 3 |