CVE-2014-3581 is a denial-of-service vulnerability affecting the Apache HTTP Server (versions before 2.4.11), as well as products from Canonical, Oracle, and Red Hat. It stems from a NULL pointer dereference in the mod_cache module, triggered by an empty HTTP Content-Type header. Rated with a CVSS score of 5.0, this vulnerability is easily exploitable remotely without authentication (AV:N/AC:L/Au:N) and can lead to an application crash (A:P). There is no evidence of active exploitation, publicly available exploit code, or significant community discussion, and it is not listed on the CISA KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.4.1CPE matchmatch criteria | cpe:2.3:a:apache:http_server:2.4.1:*:*:*:*:*:*:* | ||
2.4.2CPE matchmatch criteria | cpe:2.3:a:apache:http_server:2.4.2:*:*:*:*:*:*:* | ||
2.4.3CPE matchmatch criteria | cpe:2.3:a:apache:http_server:2.4.3:*:*:*:*:*:*:* | ||
2.4.4CPE matchmatch criteria | cpe:2.3:a:apache:http_server:2.4.4:*:*:*:*:*:*:* | ||
2.4.6CPE matchmatch criteria | cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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Dec 10, 2025httpd: NULL pointer dereference in mod_cache if Content-Type has empty value
Sep 8, 2014Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project