SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-0253

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…

MEDIUM 5.0EPSS 12.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 12.9%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

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 2.0
5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
12.89% probability · 96th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
apache/http server · apple/mac os x · apple/mac os x server · oracle/linux · oracle/solaris
Source
secalert@redhat.com
EPSS trend
0%8%15%4 November 2026: 12.89%4 November 20264 November 2026

EPSS 12.9% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.