CVE-2026-10649 — CVE & Security Advisory Radar

🎯 CVE-2026-10649 HIGH 8.6 🔥 EPSS 56% 🧪 PoC 🇪🇺 EUVD

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CVE-2026-10649 | A flaw was found in Pacemaker. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the remote message decompression process. By sending a specially crafted compressed remote message before authentication, an attacker can cause memory corruption, leading to a denial of service (DoS) in the CIB remote listener. This can result in the affected service crashing.

A flaw was found in Pacemaker. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the remote message decompression process. By sending a specially crafted compressed remote message before authentication, an attacker can cause memory corruption, leading to a denial of service (DoS) in the CIB remote listener. This can result in the affected service crashing.

Klassifikation & Betroffenheit:

Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support patch: 0:3.0.0-5.3.el10_0Red Hat Enterprise Linux 8.8 Telecommunications Update Service patch: 0:2.1.5-9.7.el8_8Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions patch: 0:2.1.7-5.5.el9_4Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support patch: 0:2.1.2-4.el8_6.11Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support patch: 0:2.0.5-9.el8_4.12Red Hat Enterprise Linux 7 Extended Lifecycle Support patch: 0:1.1.23-1.el7_9.2Red Hat Enterprise Linux 10 patch: 0:3.0.1-5.el10_2.1Red Hat Enterprise Linux 8 patch: 0:2.1.7-5.6.el8_10

Improper Restriction of Operations within the Bounds of a Memory Buffer 🎯 High

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

🛡️ Empfohlene Mitigation: Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow prot…

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-10 · Buffer Overflow via Environment Variable… (High) CAPEC-14 · Client-side Injection-induced Buffer Ove… (High) CAPEC-24 · Filter Failure through Buffer Overflow (High) CAPEC-42 · MIME Conversion (High) CAPEC-44 · Overflow Binary Resource File (Very High) CAPEC-45 · Buffer Overflow via Symbolic Links (High) CAPEC-100 · Overflow Buffers (Very High) CAPEC-123 · Buffer Manipulation (Very High)

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2026-18948 9.9 CVE-2026-14450 9.9 CVE-2026-7374 9.9 CVE-2024-45496 9.9 CVE-2026-10579 9.8

📚 Referenzen & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

Ausnutzungs-Zeitleiste:

Reserviert 2026

Veröffentlicht 06/2026

Heute 07.09.

CVSS-Vektor-Analyse: 8.6

AV · Angriffsvektor Netzwerk

AC · Komplexität Gering

PR · Privilegien Keine

UI · Interaktion Keine

S · Scope Unverändert

C · Vertraulichkeit Gering

I · Integrität Gering

A · Verfügbarkeit Hoch

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Veröffentlicht:16.06.2026

Aktualisiert:21.08.2026 12:16

Assigner (CNA):redhat

EUVD-ID:EUVD-2026-37128

Quellen: 🇪🇺 EUVD-Datenbank (ENISA) + 🇺🇸 NVD-Anreicherung · 24-h-Cache

CWE-119: Memory Corruption ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

Tier	2026-08-29	2026-09-06
≥90 %	4	0
≥50 %	4	0
≥10 %	3	0
<10 %	304	300

8.6 HIGH

🇪🇺 EUVD

EPSS

56%

CVE-2026-10649 🌐 Netzwerk (Remote) 🔓 Keine Authentifizierung nötig

🧪 Red Hat

CVE-2026-10649 | A flaw was found in Pacemaker. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the remote message decompression process. By sending a specially crafted compressed remote message before authentication, an attacker can cause memory corruption, leading to a denial of service (DoS) in the CIB remote listener. This can result in the affected service crashing.

CWE-119: Memory Corruption ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

16.06.2026

🛡️ Details ➔

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