Windows PrintWorkflowUserSvc
CVE-2025-55686 — Windows PrintWorkflowUserSvc Elevation of Privilege Vulnerability
Executive Summary
Use after free in Windows PrintWorkflowUserSvc allows an authorized attacker to elevate privileges locally.
Overview
7
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.1
EPSS Score
0.00313
probability of exploitation in the next 30 days
0.22841 percentile - updated 2026-06-21
View on FIRST.org
Affected Products
19 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 Version 21H2 for 32-bit Systems | 5066791 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 21H2 for ARM64-based Systems | 5066791 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 21H2 for x64-based Systems | 5066791 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 22H2 for 32-bit Systems | 5066791 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 22H2 for ARM64-based Systems | 5066791 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 22H2 for x64-based Systems | 5066791 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 11 Version 22H2 for ARM64-based Systems | 5066793 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 11 Version 22H2 for x64-based Systems | 5066793 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 11 Version 23H2 for ARM64-based Systems | 5066793 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 11 Version 23H2 for x64-based Systems | 5066793 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 11 Version 24H2 for ARM64-based Systems | 5066835 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 11 Version 24H2 for x64-based Systems | 5066835 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 11 Version 25H2 for ARM64-based Systems | 5066835 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 11 Version 25H2 for x64-based Systems | 5066835 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2022 | 5066782 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2022 (Server Core installation) | 5066782 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2022, 23H2 Edition (Server Core installation) | 5066780 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2025 | 5066835 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server 2025 (Server Core installation) | 5066835 (Security Update) |
Important | Elevation of Privilege | Yes |
Patches
5 patches
| Article | Type | Restart |
|---|---|---|
5066791 |
Security Update | Yes |
5066793 |
Security Update | Yes |
5066835 |
Security Update | Yes |
5066782 |
Security Update | Yes |
5066780 |
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
Jongseong Kim (nevul37), SEC-agent team, Hwiwon Lee (hwiwonl), SEC-agent team
References
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