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Vulnerabilities

CVE-2026-35092

High ⚡ Exploit Available
A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a re
CWE-190 — Weakness Type
Published: Apr 1, 2026  ·  Modified: Apr 8, 2026  ·  Source: NVD
CVSS v3
7.5
🔗 NVD Official
📄 Description (English)

A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to crash, leading to a denial of service. This vulnerability specifically affects Corosync deployments configured to use totemudp/totemudpu mode.

🤖 AI Executive Summary

An integer overflow vulnerability in Corosync's join message validation allows remote unauthenticated attackers to crash the service via crafted UDP packets, causing denial of service. This affects Corosync deployments using totemudp/totemudpu mode.

📄 Description (Arabic)

ثغرة تجاوز عدد صحيح في وحدة التحقق من صحة رسائل الانضمام في Corosync تسمح للمهاجمين البعيدين بإرسال حزم UDP مصنوعة خصيصاً. يؤدي هذا إلى توقف الخدمة وفقدان توفرها في البيئات المجمعة. تؤثر الثغرة على نشرات Corosync التي تستخدم وضع totemudp/totemudpu.

🤖 ملخص تنفيذي (AI)

A vulnerability in Corosync allows remote attackers to send malicious UDP packets that exploit an integer overflow, crashing the clustering service and disrupting operations. Organizations using totemudp/totemudpu mode are at risk of service unavailability.

🤖 AI Intelligence Analysis Analyzed: May 2, 2026 19:16
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
banking government energy telecom
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.0
/ 10.0
🔧 Remediation Steps (English)
Update Corosync to the latest patched version immediately. Implement network segmentation to restrict UDP access to trusted cluster nodes only. Monitor cluster logs for suspicious join attempts and consider disabling totemudp mode if alternative transport mechanisms are available.
🔧 خطوات المعالجة (العربية)
قم بتحديث Corosync إلى أحدث إصدار معدل فوراً. طبق تقسيم الشبكة لتقييد وصول UDP للعقد الموثوقة فقط. راقب سجلات المجموعة للكشف عن محاولات انضمام مريبة وفكر في تعطيل وضع totemudp إن أمكن.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1 5.2 6.1
🔵 SAMA CSF
ID.BE-1 PR.IP-1 DE.CM-1
🟡 ISO 27001:2022
A.12.6.1 A.14.2.1
📦 Affected Products / CPE 6 entries
corosync:corosync:-
redhat:openshift:4.0
redhat:enterprise_linux:7.0
redhat:enterprise_linux:8.0
redhat:enterprise_linux:9.0
redhat:enterprise_linux:10.0
📊 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-190
EPSS0.06%
Exploit ✓ Yes
Patch ✗ No
Published 2026-04-01
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
7.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-190
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