VULNERABILITY INTELLIGENCE
CVE-2007-4783
CVSS score5 MEDIUM
EPSS probability3.63%
CISA KEVNot currently listed
Published2007-09-10
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
Description
The iconv_substr function in PHP 5.2.4 and earlier allows context-dependent attackers to cause (1) a denial of service (application crash) via a long string in the charset parameter, probably also requiring a long string in the str parameter; or (2) a denial of service (temporary application hang) via a long string in the str parameter. NOTE: this might not be a vulnerability in most web server environments that support multiple threads, unless these issues can be demonstrated for code execution.
Weakness classification
- CWE-20: Improper Input Validation