Microsoft Edge (HTML-based)
CVE-2021-1705 — Microsoft Edge (HTML-based) Memory Corruption Vulnerability
Executive Summary
None
Overview
4.2
CVSS MEDIUM
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
Temporal Score: 3.8
EPSS Score
0.01916
probability of exploitation in the next 30 days
0.77191 percentile - updated 2026-06-20
View on FIRST.org
Affected Products
21 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems | 4598231 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems | 4598231 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems | 4598243 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems | 4598243 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems | 4598245 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems | 4598245 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems | 4598245 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems | 4598230 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems | 4598230 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems | 4598230 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for 32-bit Systems | 4598229 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for ARM64-based Systems | 4598229 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for x64-based Systems | 4598229 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 2004 for 32-bit Systems | 4598242 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 2004 for ARM64-based Systems | 4598242 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 2004 for x64-based Systems | 4598242 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 20H2 for 32-bit Systems | 4598242 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 20H2 for ARM64-based Systems | 4598242 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 20H2 for x64-based Systems | 4598242 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows Server 2016 | 4598243 (Security Update) |
Moderate | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows Server 2019 | 4598230 (Security Update) |
Moderate | Remote Code Execution | Yes |
Patches
6 patches
| Article | Type | Restart |
|---|---|---|
4598231 |
Security Update | Yes |
4598243 |
Security Update | Yes |
4598245 |
Security Update | Yes |
4598230 |
Security Update | Yes |
4598229 |
Security Update | Yes |
4598242 |
Security Update | Yes |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
HAO LI of VenusTech ADLab
References
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