Microsoft Browsers
CVE-2020-17058 — Microsoft Browser Memory Corruption Vulnerability
Executive Summary
None
Overview
7.5
CVSS HIGH
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.7
EPSS Score
0.03085
probability of exploitation in the next 30 days
0.86528 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
44 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Internet Explorer 11 on Windows 10 for 32-bit Systems | 4586787 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 for x64-based Systems | 4586787 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems | 4586830 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems | 4586830 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems | 4586785 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems | 4586785 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems | 4586785 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems | 4586793 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems | 4586793 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems | 4586793 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 2004 for 32-bit Systems | 4586781 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 2004 for ARM64-based Systems | 4586781 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 2004 for x64-based Systems | 4586781 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 20H2 for 32-bit Systems | 4586781 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows 10 Version 20H2 for ARM64-based Systems | 4586781 (Security Update) |
Critical | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows Server 2016 | 4586830 (Security Update) |
Moderate | Remote Code Execution | Yes |
| Internet Explorer 11 on Windows Server 2019 | 4586793 (Security Update) |
Moderate | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems | 4586787 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems | 4586787 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems | 4586830 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems | 4586830 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems | 4586785 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems | 4586785 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems | 4586785 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems | 4586793 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems | 4586793 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems | 4586793 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for 32-bit Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for ARM64-based Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for x64-based Systems | 4586786 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 2004 for 32-bit Systems | 4586781 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 2004 for ARM64-based Systems | 4586781 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 2004 for x64-based Systems | 4586781 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows Server 2016 | 4586830 (Security Update) |
Moderate | Remote Code Execution | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows Server 2019 | 4586793 (Security Update) |
Moderate | Remote Code Execution | Yes |
Patches
6 patches
| Article | Type | Restart |
|---|---|---|
4586787 |
Security Update | Yes |
4586830 |
Security Update | Yes |
4586785 |
Security Update | Yes |
4586793 |
Security Update | Yes |
4586786 |
Security Update | Yes |
4586781 |
Security Update | Yes |
Exploits & PoC
No public exploit or PoC has been linked for this CVE yet. When available, references are sourced from public repositories and may be unverified or non-functional — review carefully before use.
Detection Rules
No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.
Acknowledgments
None
References
On This Page