📧 info@ciso.sa | 📱 +966550939344 | Riyadh, Kingdom of Saudi Arabia
🔧 Scheduled Maintenance — Saturday 2:00-4:00 AM AST. Some features may be temporarily unavailable.    ●   
💎
Pro Plan 50% Off Unlock all AI features, unlimited reports, and priority support. Upgrade
Search Center
ESC to close
Global data_breach Pharmaceutical HIGH 1h Global vulnerability Technology, Artificial Intelligence CRITICAL 1h Global vulnerability Information Technology CRITICAL 1h Global phishing Gaming and Entertainment HIGH 2h Global vulnerability Information Technology CRITICAL 2h Global phishing Law Enforcement, Cybercrime HIGH 2h Global vulnerability Artificial Intelligence MEDIUM 2h Global vulnerability Government CRITICAL 3h Global data_breach Government HIGH 4h Global vulnerability Enterprise Software / ERP Systems CRITICAL 4h Global data_breach Pharmaceutical HIGH 1h Global vulnerability Technology, Artificial Intelligence CRITICAL 1h Global vulnerability Information Technology CRITICAL 1h Global phishing Gaming and Entertainment HIGH 2h Global vulnerability Information Technology CRITICAL 2h Global phishing Law Enforcement, Cybercrime HIGH 2h Global vulnerability Artificial Intelligence MEDIUM 2h Global vulnerability Government CRITICAL 3h Global data_breach Government HIGH 4h Global vulnerability Enterprise Software / ERP Systems CRITICAL 4h Global data_breach Pharmaceutical HIGH 1h Global vulnerability Technology, Artificial Intelligence CRITICAL 1h Global vulnerability Information Technology CRITICAL 1h Global phishing Gaming and Entertainment HIGH 2h Global vulnerability Information Technology CRITICAL 2h Global phishing Law Enforcement, Cybercrime HIGH 2h Global vulnerability Artificial Intelligence MEDIUM 2h Global vulnerability Government CRITICAL 3h Global data_breach Government HIGH 4h Global vulnerability Enterprise Software / ERP Systems CRITICAL 4h
Vulnerabilities

CVE-2026-7259

Medium
CWE-476 — Weakness Type
Published: May 10, 2026  ·  Modified: May 13, 2026  ·  Source: NVD
CVSS v3
6.5
🔗 NVD Official
📄 Description (English)

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().

🤖 AI Executive Summary

A NULL pointer dereference vulnerability in PHP's multibyte string handling causes denial of service when user-controlled input influences encoding parameters in mb_regex_encoding(). Affected versions include PHP 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.

📄 Description (Arabic)

تحتوي هذه الثغرة على عدم تطابق بين قوائم الترميز في مكتبات Oniguruma و mbfl مما يؤدي إلى إلغاء مؤشر فارغ. يمكن استغلال الثغرة عندما يتمكن المهاجم من التحكم في مدخلات المستخدم التي تؤثر على معاملات الترميز المرسلة للدوال.

🤖 ملخص تنفيذي (AI)

A NULL pointer dereference in PHP multibyte regex functions causes application crashes when processing user input with specific encoding parameters. This affects multiple PHP versions and can be exploited to cause denial of service attacks.

🤖 AI Intelligence Analysis Analyzed: May 13, 2026 03:54
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
banking telecom government healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.0
/ 10.0
🔧 Remediation Steps (English)
Update PHP to version 8.2.31, 8.3.31, 8.4.21, 8.5.6 or later. Implement input validation for encoding parameters passed to mb_regex_encoding(). Restrict user control over encoding selection where possible. Monitor PHP error logs for segmentation faults.
🔧 خطوات المعالجة (العربية)
قم بتحديث PHP إلى الإصدار 8.2.31 أو 8.3.31 أو 8.4.21 أو 8.5.6 أو أحدث. تطبيق التحقق من صحة المدخلات لمعاملات الترميز المرسلة إلى mb_regex_encoding(). تقييد تحكم المستخدم باختيار الترميز حيثما أمكن. مراقبة سجلات أخطاء PHP للكشف عن أعطال التجزئة.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.11.2.1 A.12.6.1
🔵 SAMA CSF
ID.BE-5.1 PR.IP-1.1
🟡 ISO 27001:2022
A.12.2.1 A.14.2.1
📦 Affected Products / CPE 4 entries
php:php
php:php
php:php
php:php
📊 CVSS Score
6.5
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionR — Required
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityN — None / Network
AvailabilityH — High
📋 Quick Facts
Severity Medium
CVSS Score6.5
CWECWE-476
EPSS0.04%
Exploit No
Patch ✗ No
Published 2026-05-10
Source Feed nvd
🇸🇦 Saudi Risk Score
7.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-476
Share this CVE
📣 Found this valuable?
Share it with your cybersecurity network
in LinkedIn 𝕏 X / Twitter 💬 WhatsApp ✈ Telegram
🍪 Privacy Preferences
CISO Consulting — Compliant with Saudi Personal Data Protection Law (PDPL)
We use cookies and similar technologies to provide the best experience on our platform. You can choose which types you accept.
🔒
Essential Always On
Required for the website to function properly. Cannot be disabled.
📋 Sessions, CSRF tokens, authentication, language preferences
📊
Analytics
Help us understand how visitors use the site and improve performance.
📋 Page views, session duration, traffic sources, performance metrics
⚙️
Functional
Enable enhanced features like content personalization and preferences.
📋 Dark/light theme, font size, custom dashboards, saved filters
📣
Marketing
Used to deliver content and ads relevant to your interests.
📋 Campaign tracking, retargeting, social media analytics
Privacy Policy →
CISO AI Assistant
Ask anything · Documents · Support
🔐

Introduce Yourself

Enter your details to access the full assistant

Your info is private and never shared
💬
CyberAssist
Online · responds in seconds
5 / 5
🔐 Verify Your Identity

Enter your email to receive a verification code before submitting a support request.

Enter to send · / for commands 0 / 2000
CISO AI · Powered by Anthropic Claude
✦ Quick Survey Help Us Improve CISO Consulting Your feedback shapes the future of our platform — takes less than 2 minutes.
⚠ Please answer this question to continue

How would you rate your overall experience with our platform?

Rate from 1 (poor) to 5 (excellent)

🎉
Thank you!
Your response has been recorded.