Windows Event Logging Service
CVE-2021-1703 — Windows Event Logging Service Elevation of Privilege Vulnerability
Executive Summary
None
Overview
7.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
Temporal Score: 6.8
EPSS Score
0.00799
probability of exploitation in the next 30 days
0.51728 percentile - updated 2026-06-20
View on FIRST.org
Affected Products
8 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 Version 2004 for 32-bit Systems | 4598242 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 2004 for ARM64-based Systems | 4598242 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 2004 for x64-based Systems | 4598242 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 20H2 for 32-bit Systems | 4598242 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 20H2 for ARM64-based Systems | 4598242 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 20H2 for x64-based Systems | 4598242 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 2004 (Server Core installation) | 4598242 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 20H2 (Server Core Installation) | 4598242 (Security Update) |
Important | Elevation of Privilege | Yes |
Patches
1 patch
| Article | Type | Restart |
|---|---|---|
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
Ronen Haber (Palo Alto Networks)
References
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