Medium 5.0Published Jul 20, 2015

CVE-2015-0253The read_request_line function in server/protocol.c in the Apache HTTP Server 2.4.12 does not initialize the protocol structure member, which allows remote attackers to cause a denial of service (NUL…

Updated under an hour ago (Nov 2, 2026, 12:10 AM ET)

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It affects apache http_server and 4 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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The read_request_line function in server/protocol.c in the Apache HTTP Server 2.4.12 does not initialize the protocol structure member, which allows remote attackers to cause a denial of service (NULL pointer dereference and process crash) by sending a request that lacks a method to an installation that enables the INCLUDES filter and has an ErrorDocument 400 directive specifying a local URI.

CVSS: 5.0 MEDIUM (v2.0, NVD)AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

apache http_server apache:http_server	2.4.12	NVD
apple mac_os_x apple:mac_os_x	10.10.4	NVD
apple mac_os_x_server apple:mac_os_x_server	5.0.3	NVD
oracle linux oracle:linux	7	NVD
oracle solaris oracle:solaris	11.3	NVD

References

References

http://httpd.apache.org/security/vulnerabilities_24.html	vendor-advisory
http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html	mailing-list
http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html	mailing-list
http://rhn.redhat.com/errata/RHSA-2015-1666.html
http://www.apache.org/dist/httpd/CHANGES_2.4	release-notes, vendor-advisory
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html	third-party-advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html	third-party-advisory
http://www.securityfocus.com/bid/75964
http://www.securitytracker.com/id/1032967
https://bz.apache.org/bugzilla/show_bug.cgi?id=57531	issue-tracking
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The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.