Out-of-Bounds Read Vulnerability in Windows HTTP.sys

CVE-2026-33096

What is CVE-2026-33096?

CVE-2026-33096 is a notable vulnerability identified in Windows HTTP.sys, a core system component of Microsoft Windows that handles HTTP requests. This vulnerability involves an out-of-bounds read, which can permit unauthorized attackers to gain access to sensitive data or cause disruptions. By exploiting this weakness, an attacker is capable of executing a denial of service attack over a network, negatively impacting organizations that depend on uninterrupted web services. The implications entwining this vulnerability revolve around potential data leaks and service accessibility interruptions, which can have severe operational and reputational consequences for businesses relying on Microsoft systems for their web-based applications and services.

Potential impact of CVE-2026-33096

1. Denial of Service (DoS): The primary impact of this vulnerability is the potential for attackers to exploit it and execute denial of service attacks, which can render web services inaccessible. This disruption affects service availability, leading to significant operational downtime and losses.

2. Unauthorized Data Exposure: The out-of-bounds nature of the vulnerability raises concerns about unauthorized access to sensitive information, increasing risks of data breaches. This can compromise user trust and lead to regulatory penalties.

3. Wider Network Compromise: Given that HTTP.sys serves as a foundational component in network communications for Windows systems, exploiting this vulnerability can open avenues for further intrusions within the organization's network, leading to potential exploitation of additional vulnerabilities and systems.

News Articles

Swapupdate

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The Hacker News

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