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TI-2025-33670 Aliases CVE-2025-53769GHSA-78fp-x36m-f5gf

Windows Security App Spoofing Vulnerability

Priority LOW 25CWE-73Published · Updated

Key facts

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

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

Summary

External control of file name or path in Windows Security App allows an authorized attacker to perform spoofing locally.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00399 34th percentileScored 2026-11-07
Fix Fixed Windows Security App (Microsoft): 1000.27840.1000.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftWindows Security App1000.0.0.0 to before 1000.27840.1000.01000.27840.1000.0Patch availableCNA
  • Windows Security App VendorMicrosoft Affected 1000.0.0.0 to before 1000.27840.1000.0 Fixed in 1000.27840.1000.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:windows_security_app:*:*:*:*:*:*:*:*before 1000.27840.0.1000VulnerableMicrosoft
  • cpe:2.3:a:microsoft:windows_security_app:*:*:*:*:*:*:*:* Versions before 1000.27840.0.1000 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Windows Security App (Microsoft) Fixed in 1000.27840.1000.0

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Spoofing
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Windows Security AppFixed 1000.27840.1000.0 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-53769
  2. 2026-10-03 Alias added: GHSA-78fp-x36m-f5gf

References

Patch 1

  • TI-2026-73379 Use after free in Windows Security App allows privilege escalation CVSS 3.1HIGH 7.0
  • TI-2025-30349 Windows Security App Spoofing Vulnerability CVSS 3.1MEDIUM 5.5

Sources

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