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TI-2026-48396 Aliases CVE-2026-68821GHSA-j4h5-8p8v-mfj6

Windows Package Manager Elevation of Privilege Vulnerability

Priority LOW 36CWE-269Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from Microsoft.

Summary

Improper privilege management in Windows Package Manager allows an authorized attacker to elevate privileges locally.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00321 25th percentileScored 2026-11-07
Fix Fixed App Installer (Microsoft): 1.29.279

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftApp Installer1.0.0.0 to before 1.29.2791.29.279Patch availableCNA
  • App Installer VendorMicrosoft Affected 1.0.0.0 to before 1.29.279 Fixed in 1.29.279 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:app_installer:*:*:*:*:*:*:*:*before 1.29.280VulnerableMicrosoft
  • cpe:2.3:a:microsoft:app_installer:*:*:*:*:*:*:*:* Versions before 1.29.280 Vulnerable ·Microsoft

Remediation

  • Fix · CNA App Installer (Microsoft) Fixed in 1.29.279

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
App InstallerFixed 1.29.279 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-68821
  2. 2026-10-03 Alias added: GHSA-j4h5-8p8v-mfj6

References

Patch 1

  • TI-2021-19678 Windows AppX Installer Spoofing Vulnerability KEVCVSS 3.1HIGH 7.1
  • TI-2024-25460 Windows App Installer Spoofing Vulnerability CVSS 3.1HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences