HS
Web Server
HTTP Server
by Apache · last CVE Oct 1, 2026
On CISA KEVExploited in the wildRansomware-linked
351
CVEs
5
On KEV
9.8
Max CVSS
20
New 30D
Severity mix
Critical 33High 93Medium 43Low 1
Watch

Add HTTP Server to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2007-1742
–
1%
Apr 13
suexec in Apache HTTP Server (httpd) 2.2.3 uses a partial comparison for verifying whether the current directory is within the document root, which might allow local users to…
Affected: 2.2.3
CVE-2007-1741
–
1%
Apr 13
Multiple race conditions in suexec in Apache HTTP Server (httpd) 2.2.3 between directory and file validation, and their usage, allow local users to gain privileges and execute…
Affected: 2.2.3
CVE-2007-0450
–
91%
Mar 16
Directory traversal vulnerability in Apache HTTP Server and Tomcat 5.x before 5.5.22 and 6.x before 6.0.10, when using certain proxy modules (mod_proxy, mod_rewrite, mod_jk),…
Affected: All versions, or not specified
CVE-2007-0086
–
10%
Jan 5
The Apache HTTP Server, when accessed through a TCP connection with a large window size, allows remote attackers to cause a denial of service (network bandwidth consumption) via a…
Affected: All versions, or not specified
CVE-2006-4154
–
16%
Oct 16
Format string vulnerability in the mod_tcl module 1.0 for Apache 2.x allows context-dependent attackers to execute arbitrary code via format string specifiers that are not…
Affected: 2.0; 2.0.9; 2.0.28; 2.0.28; 2.0.28; 2.0.32; +34 more
CVE-2006-4110
–
40%
Aug 14
Apache 2.2.2, when running on Windows, allows remote attackers to read source code of CGI programs via a request that contains uppercase (or alternate case) characters that bypass…
Affected: 2.0.58; 2.2.2; 2.2.3
CVE-2006-3747
–
97%
Jul 28
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…
Affected: 1.3.28 before 1.3.37; 2.0.46 before 2.0.59; 2.2.0 before 2.2.3
CVE-2006-3918
–
95%
Jul 28
http_protocol.c in (1) IBM HTTP Server 6.0 before 6.0.2.13 and 6.1 before 6.1.0.1, and (2) Apache HTTP Server 1.3 before 1.3.35, 2.0 before 2.0.58, and 2.2 before 2.2.2, does not…
Affected: 1.3.3 before 1.3.35
CVE-2005-3357
–
24%
Dec 31
mod_ssl in Apache 2.0 up to 2.0.55, when configured with an SSL vhost with access control and a custom error 400 error page, allows remote attackers to cause a denial of service…
Affected: 2.0; 2.0.9; 2.0.28; 2.0.28; 2.0.32; 2.0.35; +20 more
CVE-2005-3352
–
74%
Dec 13
Cross-site scripting (XSS) vulnerability in the mod_imap module of Apache httpd before 1.3.35-dev and Apache httpd 2.0.x before 2.0.56-dev allows remote attackers to inject…
Affected: before 1.3.35; 2.0 before 2.0.56; 2.2
CVE-2005-2970
–
14%
Oct 25
Memory leak in the worker MPM (worker.c) for Apache 2, in certain circumstances, allows remote attackers to cause a denial of service (memory consumption) via aborted connections,…
Affected: 2.0.36 before 2.0.55
CVE-2005-2700
–
31%
Sep 6
ssl_engine_kernel.c in mod_ssl before 2.8.24, when using "SSLVerifyClient optional" in the global virtual host configuration, does not properly enforce "SSLVerifyClient require"…
Affected: 2.0.35 before 2.0.55
CVE-2005-2728
–
11%
Aug 30
The byte-range filter in Apache 2.0 before 2.0.54 allows remote attackers to cause a denial of service (memory consumption) via an HTTP header with a large Range field
Affected: 2.0; 2.0.9; 2.0.28; 2.0.28; 2.0.32; 2.0.35; +18 more
CVE-2005-1268
–
8%
Aug 5
Off-by-one error in the mod_ssl Certificate Revocation List (CRL) verification callback in Apache, when configured to use a CRL, allows remote attackers to cause a denial of…
Affected: 2.0.35 through 2.0.54
CVE-2005-2088
–
20%
Jul 5
The Apache HTTP server before 1.3.34, and 2.0.x before 2.0.55, when acting as an HTTP proxy, allows remote attackers to poison the web cache, bypass web application firewall…
Affected: 2.0.35 before 2.0.55
CVE-2005-1344
–
29%
May 2
Buffer overflow in htdigest in Apache 2.0.52 may allow attackers to execute arbitrary code via a long realm argument
Affected: 2.0.52
CVE-2004-0942
–
59%
Feb 9
Apache webserver 2.0.52 and earlier allows remote attackers to cause a denial of service (CPU consumption) via an HTTP GET request with a MIME header containing multiple lines…
Affected: through 2.0.52
CVE-2004-2343
–
1%
Dec 31
Apache HTTP Server 2.0.47 and earlier allows local users to bypass .htaccess file restrictions, as specified in httpd.conf with directives such as Deny From All, by using an…
Affected: through 2.0.47
CVE-2004-1387
–
1%
Dec 31
The check_forensic script in apache-utils package 1.3.31 allows local users to overwrite or create arbitrary files via a symlink attack on temporary files
Affected: 1.3.31
CVE-2004-0811
–
8%
Dec 31
Unknown vulnerability in Apache 2.0.51 prevents "the merging of the Satisfy directive," which could allow attackers to obtain access to restricted resources contrary to the…
Affected: 2.0.51
CVE-2004-0263
–
4%
Nov 23
PHP 4.3.4 and earlier in Apache 1.x and 2.x (mod_php) can leak global variables between virtual hosts that are handled by the same Apache child process but have different…
Affected: 1.0; 1.0.2; 1.0.3; 1.0.5; 1.1; 1.1.1; +34 more
CVE-2004-0885
–
15%
Nov 3
The mod_ssl module in Apache 2.0.35 through 2.0.52, when using the "SSLCipherSuite" directive in directory or location context, allows remote clients to bypass intended…
Affected: 2.0.35; 2.0.36; 2.0.37; 2.0.38; 2.0.39; 2.0.40; +12 more
CVE-2004-0786
–
24%
Oct 20
The IPv6 URI parsing routines in the apr-util library for Apache 2.0.50 and earlier allow remote attackers to cause a denial of service (child process crash) via a certain URI, as…
Affected: 2.0.35 before 2.0.51
CVE-2004-0748
–
25%
Oct 20
mod_ssl in Apache 2.0.50 and earlier allows remote attackers to cause a denial of service (CPU consumption) by aborting an SSL connection in a way that causes an Apache child…
Affected: 2.0.35 before 2.0.51
CVE-2004-0751
–
72%
Oct 20
The char_buffer_read function in the mod_ssl module for Apache 2.x, when using reverse proxying to an SSL server, allows remote attackers to cause a denial of service…
Affected: 2.0.44 before 2.0.51
CVE-2004-0809
–
17%
Sep 16
The mod_dav module in Apache 2.0.50 and earlier allows remote attackers to cause a denial of service (child process crash) via a certain sequence of LOCK requests for a location…
Affected: 2.0.35 before 2.0.51
CVE-2004-0493
–
85%
Aug 6
The ap_get_mime_headers_core function in Apache httpd 2.0.49 allows remote attackers to cause a denial of service (memory exhaustion), and possibly an integer signedness error…
Affected: 2.0.47; 2.0.48; 2.0.49
CVE-2004-0492
–
34%
Aug 6
Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a denial of service (process crash) and possibly execute…
Affected: 1.3.26; 1.3.27; 1.3.28; 1.3.29; 1.3.31
CVE-2004-0488
–
38%
Jul 7
Stack-based buffer overflow in the ssl_util_uuencode_binary function in ssl_util.c for Apache mod_ssl, when mod_ssl is configured to trust the issuing CA, may allow remote…
Affected: 2.0.35 before 2.0.50
CVE-2004-0173
–
16%
Apr 15
Directory traversal vulnerability in Apache 1.3.29 and earlier, and Apache 2.0.48 and earlier, when running on Cygwin, allows remote attackers to read arbitrary files via a URL…
Affected: 0.8.11; 0.8.14; 1.0; 1.0.2; 1.0.3; 1.0.5; +5 more
CVE-2004-0113
–
11%
Mar 29
Memory leak in ssl_engine_io.c for mod_ssl in Apache 2 before 2.0.49 allows remote attackers to cause a denial of service (memory consumption) via plain HTTP requests to the SSL…
Affected: 2.0.35; 2.0.36; 2.0.37; 2.0.38; 2.0.39; 2.0.40; +8 more
CVE-2003-0993
–
11%
Mar 29
mod_access in Apache 1.3 before 1.3.30, when running big-endian 64-bit platforms, does not properly parse Allow/Deny rules using IP addresses without a netmask, which could allow…
Affected: 1.3; 1.3.1; 1.3.3; 1.3.4; 1.3.6; 1.3.7; +16 more
CVE-2004-1834
–
4%
Mar 20
mod_disk_cache in Apache 2.0 through 2.0.49 stores client headers, including authentication information, on the hard disk, which could allow local users to gain sensitive…
Affected: 2.0; 2.0.9; 2.0.28; 2.0.28; 2.0.32; 2.0.35; +14 more
CVE-2003-0987
–
6%
Mar 3
mod_digest for Apache before 1.3.31 does not properly verify the nonce of a client response by using a AuthNonce secret
Affected: through 1.3.30
CVE-2004-1082
–
8%
Feb 3
mod_digest_apple for Apache 1.3.31 and 1.3.32 on Mac OS X Server does not properly verify the nonce of a client response, which allows remote attackers to replay credentials
Affected: 1.3; 1.3.1; 1.3.3; 1.3.4; 1.3.6; 1.3.7; +16 more
CVE-2003-1418
–
7%
Dec 31
Apache HTTP Server 1.3.22 through 1.3.27 on OpenBSD allows remote attackers to obtain sensitive information via (1) the ETag header, which reveals the inode number, or (2)…
Affected: 1.3.22; 1.3.23; 1.3.24; 1.3.25; 1.3.26; 1.3.27
CVE-2003-1307
–
2%
Dec 31
The mod_php module for the Apache HTTP Server allows local users with write access to PHP scripts to send signals to the server's process group and use the server's file…
Affected: 2.0; 2.0.9; 2.0.28; 2.0.28; 2.0.28; 2.0.32; +17 more
CVE-2003-0789
–
12%
Nov 3
mod_cgid in Apache before 2.0.48, when using a threaded MPM, does not properly handle CGI redirect paths, which could cause Apache to send the output of a CGI program to the wrong…
Affected: 2.0.35 before 2.0.48
CVE-2003-0542
–
30%
Nov 3
Multiple stack-based buffer overflows in (1) mod_alias and (2) mod_rewrite for Apache before 1.3.29 allow attackers to create configuration files to cause a denial of service…
Affected: 1.3; 1.3.1; 1.3.3; 1.3.4; 1.3.6; 1.3.9; +30 more
CVE-2003-0460
–
13%
Aug 27
The rotatelogs program on Apache before 1.3.28, for Windows and OS/2 systems, does not properly ignore certain control characters that are received over the pipe, which could…
Affected: through 1.3.27
CVE-2003-0253
–
9%
Aug 18
The prefork MPM in Apache 2 before 2.0.47 does not properly handle certain errors from accept, which could lead to a denial of service
Affected: 2.0; 2.0.28; 2.0.32; 2.0.35; 2.0.36; 2.0.37; +9 more
CVE-2003-0254
–
9%
Aug 18
Apache 2 before 2.0.47, when running on an IPv6 host, allows attackers to cause a denial of service (CPU consumption by infinite loop) when the FTP proxy server fails to create an…
Affected: 2.0; 2.0.28; 2.0.32; 2.0.35; 2.0.36; 2.0.37; +9 more
CVE-2003-0192
–
6%
Aug 18
Apache 2 before 2.0.47, and certain versions of mod_ssl for Apache 1.3, do not properly handle "certain sequences of per-directory renegotiations and the SSLCipherSuite directive…
Affected: 2.0; 2.0.28; 2.0.32; 2.0.35; 2.0.36; 2.0.37; +9 more
CVE-2003-0245
–
63%
Jun 9
Vulnerability in the apr_psprintf function in the Apache Portable Runtime (APR) library for Apache 2.0.37 through 2.0.45 allows remote attackers to cause a denial of service…
Affected: 2.0.37; 2.0.38; 2.0.39; 2.0.40; 2.0.41; 2.0.42; +3 more
CVE-2003-0189
–
15%
Jun 9
The authentication module for Apache 2.0.40 through 2.0.45 on Unix does not properly handle threads safely when using the crypt_r or crypt functions, which allows remote attackers…
Affected: 2.0.40; 2.0.41; 2.0.42; 2.0.43; 2.0.44; 2.0.45
CVE-2003-0134
–
7%
Apr 11
Unknown vulnerability in filestat.c for Apache running on OS2, versions 2.0 through 2.0.45, allows unknown attackers to cause a denial of service via requests related to device…
Affected: 2.0; 2.0.9; 2.0.28; 2.0.32; 2.0.35; 2.0.36; +9 more
CVE-2003-0132
–
87%
Apr 11
A memory leak in Apache 2.0 through 2.0.44 allows remote attackers to cause a denial of service (memory consumption) via large chunks of linefeed characters, which causes Apache…
Affected: 2.0.0 through 2.0.44
CVE-2003-0083
–
19%
Apr 2
Apache 1.3 before 1.3.25 and Apache 2.0 before version 2.0.46 does not filter terminal escape sequences from its access logs, which could make it easier for attackers to insert…
Affected: 1.3.0 before 1.3.26; 2.0.0 before 2.0.46
CVE-2003-0020
–
16%
Mar 18
Apache does not filter terminal escape sequences from its error logs, which could make it easier for attackers to insert those sequences into terminal emulators containing…
Affected: 1.3.0 before 1.3.31; 2.0.0 before 2.0.49
CVE-2003-0017
–
6%
Feb 7
Apache 2.0 before 2.0.44 on Windows platforms allows remote attackers to obtain certain files via an HTTP request that ends in certain illegal characters such as ">", which causes…
Affected: 2.0.36; 2.0.37; 2.0.38; 2.0.39; 2.0.40; 2.0.41; +2 more
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