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Global ransomware Multiple Sectors / Enterprise CRITICAL 1h Global general Technology and Legal MEDIUM 2h Global ransomware Financial Services / Cryptocurrency CRITICAL 2h Global general Industrial Control Systems / Operational Technology HIGH 3h Global apt Managed Service Providers (MSPs) / IT Services HIGH 4h Global vulnerability Enterprise Software HIGH 4h Global general Cybersecurity Operations HIGH 4h Global general Cybersecurity Industry LOW 4h Global supply_chain Multiple Sectors CRITICAL 4h Global vulnerability Government/Federal Agencies HIGH 5h Global ransomware Multiple Sectors / Enterprise CRITICAL 1h Global general Technology and Legal MEDIUM 2h Global ransomware Financial Services / Cryptocurrency CRITICAL 2h Global general Industrial Control Systems / Operational Technology HIGH 3h Global apt Managed Service Providers (MSPs) / IT Services HIGH 4h Global vulnerability Enterprise Software HIGH 4h Global general Cybersecurity Operations HIGH 4h Global general Cybersecurity Industry LOW 4h Global supply_chain Multiple Sectors CRITICAL 4h Global vulnerability Government/Federal Agencies HIGH 5h Global ransomware Multiple Sectors / Enterprise CRITICAL 1h Global general Technology and Legal MEDIUM 2h Global ransomware Financial Services / Cryptocurrency CRITICAL 2h Global general Industrial Control Systems / Operational Technology HIGH 3h Global apt Managed Service Providers (MSPs) / IT Services HIGH 4h Global vulnerability Enterprise Software HIGH 4h Global general Cybersecurity Operations HIGH 4h Global general Cybersecurity Industry LOW 4h Global supply_chain Multiple Sectors CRITICAL 4h Global vulnerability Government/Federal Agencies HIGH 5h
Vulnerabilities

CVE-2026-34961

Medium
CWE-125 — Weakness Type
Published: May 11, 2026  ·  Modified: May 13, 2026  ·  Source: NVD
CVSS v3
6.2
🔗 NVD Official
📄 Description (English)

barebox prior to version 2026.04.0 contains out-of-bounds read vulnerabilities in ext4 extent parsing due to missing validation of the eh_entries field against buffer capacity in fs/ext4/ext4_common.c. Attackers can supply a malicious ext4 filesystem image via USB, SD card, or network boot to trigger heap out-of-bounds reads during boot-time filesystem parsing, potentially redirecting reads to arbitrary disk offsets.

🤖 AI Executive Summary

Barebox bootloader versions prior to 2026.04.0 contain out-of-bounds read vulnerabilities in ext4 filesystem parsing that can be exploited via malicious filesystem images. Attackers can trigger heap reads during boot by supplying crafted ext4 images through USB, SD card, or network boot mechanisms.

📄 Description (Arabic)

يحتوي Barebox السابق للإصدار 2026.04.0 على ثغرات قراءة خارج الحدود في معالجة نظام ملفات ext4 بسبب عدم التحقق من صحة حقل eh_entries مقابل سعة المخزن المؤقت. يمكن للمهاجمين توفير صور نظام ملفات ext4 ضارة عبر USB أو بطاقة SD أو التمهيد عبر الشبكة لتشغيل قراءات heap خارج الحدود أثناء تحليل نظام الملفات في وقت التمهيد.

🤖 ملخص تنفيذي (AI)

Barebox bootloader versions prior to 2026.04.0 contain out-of-bounds read vulnerabilities in ext4 filesystem parsing that can be exploited via malicious filesystem images. Attackers can trigger heap reads during boot by supplying crafted ext4 images through USB, SD card, or network boot mechanisms.

🤖 AI Intelligence Analysis Analyzed: May 22, 2026 07:19
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
energy government healthcare telecom
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
6.0
/ 10.0
🔧 Remediation Steps (English)
Update barebox to version 2026.04.0 or later. Implement strict validation of eh_entries field against buffer capacity in ext4 extent parsing. Restrict USB and SD card boot access through firmware settings. Disable network boot if not required. Validate filesystem images before boot.
🔧 خطوات المعالجة (العربية)
قم بتحديث barebox إلى الإصدار 2026.04.0 أو أحدث. تطبيق التحقق الصارم من حقل eh_entries مقابل سعة المخزن المؤقت في معالجة امتدادات ext4. تقييد وصول التمهيد عبر USB وبطاقة SD من خلال إعدادات البرامج الثابتة. تعطيل التمهيد عبر الشبكة إذا لم يكن مطلوباً. التحقق من صور نظام الملفات قبل التمهيد.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.1.1.1 A.2.1.1 A.3.1.1
🔵 SAMA CSF
ID.AM-2 PR.DS-1 DE.CM-1
🟡 ISO 27001:2022
A.12.2.1 A.14.1.1 A.14.2.1
📊 CVSS Score
6.2
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack VectorL — Low / Local
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityN — None / Network
AvailabilityH — High
📋 Quick Facts
Severity Medium
CVSS Score6.2
CWECWE-125
EPSS0.01%
Exploit No
Patch ✗ No
Published 2026-05-11
Source Feed nvd
Views 1
🇸🇦 Saudi Risk Score
6.0
/ 10.0 — Saudi Risk
Priority: MEDIUM
🏷️ Tags
CWE-125
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