Microsoft Windows
CVE-2020-16980 — Windows iSCSI Target Service Elevation of Privilege Vulnerability
Executive Summary
An elevation of privilege vulnerability exists when the Windows iSCSI Target Service improperly handles file operations. An attacker who successfully exploited this vulnerability could gain elevated privileges. To exploit the vulnerability, an attacker would first need code execution on a victim system. An attacker could then run a specially crafted application. The security update addresses the vulnerability by ensuring the Windows iSCSI Target Service properly handles file operations.
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: 7.0
EPSS Score
0.00885
probability of exploitation in the next 30 days
0.54493 percentile - updated 2026-06-20
View on FIRST.org
Affected Products
11 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows Server 2012 | 4580382 (Monthly Rollup) 4580353 (Security Only) |
Important | Elevation of Privilege | Yes |
| Windows Server 2012 (Server Core installation) | 4580382 (Monthly Rollup) 4580353 (Security Only) |
Important | Elevation of Privilege | Yes |
| Windows Server 2012 R2 | 4580347 (Monthly Rollup) 4580358 (Security Only) |
Important | Elevation of Privilege | Yes |
| Windows Server 2012 R2 (Server Core installation) | 4580347 (Monthly Rollup) 4580358 (Security Only) |
Important | Elevation of Privilege | Yes |
| Windows Server 2016 | 4580346 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2016 (Server Core installation) | 4580346 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2019 | 4577668 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2019 (Server Core installation) | 4577668 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 1903 (Server Core installation) | 4577671 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 1909 (Server Core installation) | 4577671 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 2004 (Server Core installation) | 4579311 (Security Update) |
Important | Elevation of Privilege | Yes |
Patches
6 patches
| Article | Type | Restart |
|---|---|---|
4580382 (Monthly Rollup) 4580353 |
Monthly Rollup | Yes |
4580347 (Monthly Rollup) 4580358 |
Monthly Rollup | Yes |
4580346 |
Security Update | Yes |
4577668 |
Security Update | Yes |
4577671 |
Security Update | Yes |
4579311 |
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
@lxf02942370 ) & Zhiniang Peng (@edwardzpeng
References
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