6.5

CVE-2026-7259

Null pointer dereference in php_mb_check_encoding() via mb_ereg_search_init()

In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to  a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when user-controlled input can influence the encoding passed to mb_regex_encoding().
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Php ≫ Php Version >= 8.2.0 < 8.2.31
Php ≫ Php Version >= 8.3.0 < 8.3.31
Php ≫ Php Version >= 8.4.0 < 8.4.21
Php ≫ Php Version >= 8.5.0 < 8.5.6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.05% 0.164
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
security@php.net 2.1 0 0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:Amber
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.