Stack Overflow Vulnerability in XYZ Product by Vendor ABC
CVE-2026-91843

9.8CRITICAL

Key Information:

Vendor: Checkpoint
Status: Quantum Security Management
Vendor: CVE Published:; 16 September 2026

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What is CVE-2026-91843?

CVE-2026-91843 is a serious stack overflow vulnerability affecting a product developed by Checkpoint. This vulnerability arises during the unauthenticated login process, where an attacker could exploit the flaw to execute arbitrary code with root privileges remotely. The critical nature of root access means that once exploited, an attacker can gain full control over the affected system, leading to significant operational disruptions for organizations relying on this software. As such, this vulnerability can threaten the integrity, availability, and confidentiality of sensitive data managed by the product, making it crucial for organizations to be aware of and address this risk.

Potential impact of CVE-2026-91843

Remote Code Execution: The primary concern with CVE-2026-91843 is that it allows for remote code execution by unauthorized actors. This capability can lead to a complete takeover of the affected system, enabling attackers to install malware, exfiltrate data, or leverage the compromised system for further attacks on the network.
Loss of Sensitive Data: With root privileges, an attacker can access and manipulate any files or databases on the system, posing a severe risk to sensitive organizational data. This could lead to data breaches, compliance violations, and subsequent financial penalties and damage to the organization's reputation.
Operational Disruption: Exploitation of this vulnerability can result in significant disruptions to business operations. Attackers can modify, delete, or encrypt critical data, leading to downtime and operational challenges. The repercussions can extend to large-scale impacts on productivity and service delivery.

Affected Version(s)

Quantum Security Management R82.10 with Jumbo Hotfix Take 44 or below

Quantum Security Management R82 with Jumbo Hotfix Take 126 or below

Quantum Security Management R81.20 with Jumbo Hotfix Take 166 or below

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-91843
Created by HORKimhab

News Articles

BleepingComputer

CVE-2026-91843 CVE-2026-85103

New Check Point flaw lets hackers execute code with root privileges

Check Point Software has released security updates to address a critical vulnerability that can let attackers execute code with root privileges on management systems.

1 month ago

Swapupdate

CVE-2026-91843

Critical Check Point Management Flaw Lets Unauthenticated Attackers Run Code as Root - SwapUpdate

A critical vulnerability in Check Point's Security Management and Log Servers could allow an attacker without login credentials to run code as root on those

1 month ago