Summary
Impact: Information Disclosure. Microsoft rating: Moderate. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability by bypassing a security feature that is built in to prevent cookies from being read is cookies data and cached sessions. By reading a session cookie, an attacker would be able to sign into the victim’s accounts on a different computer.
According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
An attacker must send a user a malicious Office file and convince them to open it.
According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?
This vulnerability could lead to a browser sandbox escape.
What is the version information for this release?
148.0.3967.55: 148.0.3967.55, 05/11/2026: 05/11/2026, 148.0.7778.97: 148.0.7778.97
Security updates
148.0.3967.55 — https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security
Vulnerabilities 1
-
High 7.4
Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
External control of file name or path in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
Revision history
-
#1
Information published.
References
-
CVE-2026-41107 Microsoft Edge (Chromium-based) Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41107
-
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
-
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
-
Common Vulnerability Scoring System
https://www.first.org/cvss