Information Disclosure Vulnerability in Microsoft Edge by Microsoft
CVE-2026-55945
What is CVE-2026-55945?
CVE-2026-55945 is an information disclosure vulnerability found in Microsoft Edge, a web browser developed on the Chromium architecture. Designed to provide a secure and efficient browsing experience, Microsoft Edge utilizes multiple processes for improved performance and security. However, this vulnerability arises from a race condition due to improper synchronization when executing concurrent operations with shared resources. An authorized attacker can exploit this flaw to disclose sensitive information locally, potentially exposing confidential data stored within the browser or accessed through it. Given the widespread use of Microsoft Edge in both enterprise and individual settings, the implications of this vulnerability could lead to significant data loss or leakage, affecting users' privacy and organizational security.
Potential Impact of CVE-2026-55945
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Data Exposure: Exploitation of this vulnerability could result in unauthorized access to sensitive information, such as user credentials or personal data, leading to potential identity theft or misuse of data.
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Compromise of Confidentiality: Organizations relying on Microsoft Edge for secure web transactions may find their internal communications and proprietary information at risk, potentially resulting in competitive disadvantage or loss of intellectual property.
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Increased Attack Surface: Even though this vulnerability currently lacks active exploitation, it highlights the need for heightened vigilance as it may be targeted in the future. Organizations could face increased scrutiny from threat actors looking to exploit unpatched systems, creating a broader security risk.
Affected Version(s)
Microsoft Edge (Chromium-based) 1.0.0.0 < 150.0.4078.48
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