Summary
Impact: Elevation of Privilege. Microsoft rating: Moderate. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file that is designed to exploit the vulnerability. However, an attacker would have no way to force the user to visit the website. Instead, an attacker would have to convince the user to click a link, typically by way of an enticement in an email or Instant Messenger message, and then convince the user to open the specially crafted file.
Why is the severity for this CVE rated as Moderate, but the CVSS score is higher than normal?
Per our severity guidelines, the amount of user interaction or preconditions required to allow this sort of exploitation downgraded the severity, specifically it says, "If a bug requires more than a click, a key press, or several preconditions, the severity will be downgraded". The CVSS scoring system doesn't allow for this type of nuance.
What privileges could be gained by an attacker who successfully exploited the vulnerability?
An attacker who successfully exploited this vulnerability could allow the attacker to gain the privileges needed to perform code execution.
What is the version information for this release?
Stable: Stable, 117.0.2045.31: 117.0.2045.31, 117.0.5938.62/.63: 117.0.5938.62/.63, 9/15/2023: 9/15/2023
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.
Security updates
117.0.2045.31 — https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security
Vulnerabilities 1
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Critical 9.6
Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
Revision history
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#1
Information published.
References
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CVE-2023-36735 Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36735
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss