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Case File

CVE-2008-5557

HIGH · CVSS 10 EPSS 7.37%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2008-12-23 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

CVE
CVE-2008-5557
Severity
HIGH
CVSS
10
EPSS
7.37%

Original Filing — NVD Description

Heap-based buffer overflow in ext/mbstring/libmbfl/filters/mbfilter_htmlent.c in the mbstring extension in PHP 4.3.0 through 5.2.6 allows context-dependent attackers to execute arbitrary code via a crafted string containing an HTML entity, which is not properly handled during Unicode conversion, related to the (1) mb_convert_encoding, (2) mb_check_encoding, (3) mb_convert_variables, and (4) mb_parse_str functions.