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CVE-2014-5244

Date: August 19, 2025

Symfony before 2.3.19, 2.4.9, 2.5.4 is vulnerable to denial of service with a malicious HTTP Host header.

Language: PHP

Severity Score

5.3

Related Resources (8)

Url: https://symfony.com/blog/cve-2014-5244-denial-of-service-with-a-malicious-http-host-header

Url: https://symfony.com/cve-2014-5244

Url: https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-foundation/CVE-2014-5244.yaml

Url: https://nvd.nist.gov/vuln/detail/CVE-2014-5244

Url: https://github.com/symfony/symfony/commit/1ee96a8b1b0987ffe2a62dca7ad268bf9edfa9b8

Url: https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2014-5244.yaml

Url: https://github.com/symfony/symfony/pull/11828

Url: https://www.mend.io/vulnerability-database/CVE-2014-5244

Severity Score

5.3

Weakness Type (CWE)

Inefficient Regular Expression Complexity

CWE-1333

CVSS v3.1

Base Score:	5.3
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	LOW

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