CVE-2026-55945
MediumCVSS 4.2Exploitation Probability (EPSS)
Low risk4th percentile - higher than 4% of all known CVEs
Summary
A race condition vulnerability has been discovered in Microsoft Edge (Chromium-based) due to improper synchronization of shared resources during concurrent execution. This allows an authorized attacker to disclose information locally.
Risk Assessment
The risk involves potential leakage of sensitive data stored in the browser, such as passwords, session data, or browsing history, which could compromise user privacy and organizational security.
Recommendation
It is recommended to immediately update Microsoft Edge to the latest version available from the official vendor repository. Also monitor Microsoft security advisories for patches.
Other vulnerabilities in Microsoft Edge
See all- CVE-2017-11861High
A vulnerability in the Microsoft Edge scripting engine in Windows 10 and Windows Server allows an attacker to gain the same user rights as the current user due to improper handling of objects in memory.
- CVE-2017-11845High
A vulnerability in Microsoft Edge on Windows 10 1703 allows an attacker to execute arbitrary code in the context of the current user due to improper handling of objects in memory.
- CVE-2017-11800High
Microsoft Edge in Windows 10 Gold, 1511, 1607, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user due to how the scripting engine handles objects in memory.
- CVE-2017-11798High
Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, known as 'Scripting Engine Memory Corruption Vulnerability'.
- CVE-2017-8757High
Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user, due to the way Microsoft Edge handles objects in memory.
- CVE-2017-8756High
Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user due to the way Microsoft Edge accesses objects in memory.
- CVE-2017-8755High
Microsoft Edge in Windows 10 (1511, 1607, 1703) and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user due to the way the scripting engine handles objects in memory, known as 'Scripting Engine Memory Corruption Vulnerability'.
- CVE-2017-8752High
Microsoft Edge in Windows 10 (1511, 1607, 1703) and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user due to the way the Microsoft Edge scripting engine handles objects in memory.
- CVE-2017-8751High
A vulnerability in Microsoft Edge in Windows 1703 allows an attacker to execute arbitrary code in the context of the current user due to the way Microsoft Edge accesses objects in memory.
- CVE-2017-8740High
Microsoft Edge in Windows 10 version 1703 allows an attacker to execute arbitrary code in the context of the current user due to the way the Microsoft Edge scripting engine handles objects in memory.
Original NVD description (English source)
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.