Windows App Installer Spoofing Vulnerability
Priority LOW 38CWE-116Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.
Summary
Windows App Installer Spoofing Vulnerability
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00856 58th percentileScored 2026-11-07
Fix Fixed App Installer (Microsoft): 1.22.11261.0
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
Remediation
- Fix · CNA App Installer (Microsoft) Fixed in 1.22.11261.0
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Spoofing
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
| Product | Status | Plan or fix |
|---|---|---|
| App Installer | Fixed | 1.22.11261.0 · Security Update |
Timeline
- 2026-10-02 Threatist record created from CVE-2024-38177
- 2026-10-03 Alias added: GHSA-877h-phh3-7f4r
References
More Microsoft App Installer vulnerabilities
- TI-2021-19678 Windows AppX Installer Spoofing Vulnerability KEVCVSS 3.1HIGH 7.1
- TI-2026-48396 Windows Package Manager Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.8
Sources
- CVE-2024-38177 · CVE Program
- CVE-2024-38177 · NVD
- FIRST EPSS
- GHSA-877h-phh3-7f4r · GitHub Advisory Database · CC BY 4.0
- CVE-2024-38177 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences