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Vulnerabilities

CVE-2026-34388

High
Fleet is open source device management software. Prior to 4.81.0, a denial-of-service vulnerability in Fleet's gRPC Launcher endpoint allows an authenticated host to crash the entire Fleet server proc
CWE-703 — Weakness Type
Published: Mar 27, 2026  ·  Modified: Apr 3, 2026  ·  Source: NVD
CVSS v3
7.5
🔗 NVD Official
📄 Description (English)

Fleet is open source device management software. Prior to 4.81.0, a denial-of-service vulnerability in Fleet's gRPC Launcher endpoint allows an authenticated host to crash the entire Fleet server process by sending an unexpected log type value. The server terminates immediately, disrupting all connected hosts, MDM enrollments, and API consumers. Version 4.81.0 patches the issue.

🤖 AI Executive Summary

Fleet versions prior to 4.81.0 contain a denial-of-service vulnerability in the gRPC Launcher endpoint that allows authenticated hosts to crash the entire server by sending unexpected log type values. This vulnerability disrupts all connected hosts, MDM enrollments, and API consumers until the server is restarted.

📄 Description (Arabic)

تؤثر هذه الثغرة على خادم Fleet الذي يعالج طلبات gRPC من المضيفين المصرح لهم. يمكن لمهاجم مصرح له إرسال قيمة نوع سجل غير صحيحة مما يؤدي إلى توقف فوري للعملية الرئيسية. يؤثر التوقف على جميع الأجهزة المدارة وخدمات MDM والعملاء المتصلين.

🤖 ملخص تنفيذي (AI)

إصدارات Fleet السابقة للإصدار 4.81.0 تحتوي على ثغرة حرمان الخدمة في نقطة نهاية gRPC Launcher التي تسمح للمضيفين المصرح لهم بتعطيل خادم Fleet بالكامل. يؤدي هذا الضعف إلى تعطيل جميع المضيفين المتصلين وتسجيلات MDM ومستهلكي API حتى إعادة تشغيل الخادم.

🤖 AI Intelligence Analysis Analyzed: May 2, 2026 23:17
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
government banking telecom healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.0
/ 10.0
🔧 Remediation Steps (English)
Upgrade Fleet to version 4.81.0 or later immediately. Implement network-level access controls to restrict gRPC Launcher endpoint access to trusted hosts only. Monitor server logs for unexpected terminations and implement alerting for gRPC connection failures. Consider deploying Fleet behind a load balancer with health checks to enable automatic failover.
🔧 خطوات المعالجة (العربية)
قم بترقية Fleet إلى الإصدار 4.81.0 أو أحدث على الفور. طبق عناصر تحكم الوصول على مستوى الشبكة لتقييد وصول نقطة نهاية gRPC Launcher للمضيفين الموثوقين فقط. راقب سجلات الخادم للتوقفات غير المتوقعة وطبق التنبيهات لفشل اتصالات gRPC. فكر في نشر Fleet خلف موازن تحميل مع فحوصات صحية لتمكين الفشل التلقائي.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1 5.2 6.1
🔵 SAMA CSF
ID.BE-5 PR.DS-6 DE.AE-1
🟡 ISO 27001:2022
A.12.6.1 A.13.1.1 A.13.1.3
📦 Affected Products / CPE 1 entries
fleetdm:fleet
📊 CVSS Score
7.5
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack VectorN — None / Network
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 High
CVSS Score7.5
CWECWE-703
EPSS0.06%
Exploit No
Patch ✗ No
Published 2026-03-27
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
7.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-703
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