CVE-2026-48571
Windows App Package Installer Elevation of Privilege Vulnerability
HIGH
7
CVSS Score
Published: July 14, 2026 at 05:04 PM UTC
Updated: October 28, 2026 at 08:01 PM UTC
5 products affected across 1 vendorWindows Server 2025Windows 11 24H2Windows 11 23H2
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Severity
HIGH7
Exploit prediction
EPSS 0.3%
SSVC
No known exploit
Description
Use after free in Windows App Installer allows an authorized attacker to elevate privileges locally.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 10.0.22631.737610.0.22631.0
Affected range stops below 10.0.22631.7376, so it looks safe — our inference, not a vendor statement
v < 10.0.26100.887510.0.26100.0
Affected range stops below 10.0.26100.8875, so it looks safe — our inference, not a vendor statement
v < 10.0.26200.887510.0.26200.0
Affected range stops below 10.0.26200.8875, so it looks safe — our inference, not a vendor statement
v < 10.0.28000.226910.0.28000.0
Affected range stops below 10.0.28000.2269, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.28000.2525, so it looks safe — our inference, not a vendor statement
v < 10.0.26100.3315810.0.26100.0
Affected range stops below 10.0.26100.33158, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48571SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- HIGH
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-416
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