Rewterz
Bitter APT – Active IOCs
September 25, 2025
Rewterz
Cisco IOS/XE Flaw Enables Remote Auth Bypass and Data Theft
September 25, 2025

Multiple Microsoft Windows Products Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2025-54097 CVSS:6.5

Microsoft Windows could allow a remote attacker to obtain sensitive information, caused by out-of-bounds read in Routing and Remote Access Service (RRAS).

CVE-2025-54095 CVSS:6.5

Microsoft Windows could allow a remote attacker to obtain sensitive information, caused by out-of-bounds read in Routing and Remote Access Service (RRAS).

CVE-2025-54109 CVSS:6.7

Microsoft Windows could allow a local authenticated attacker to gain elevated privileges on the system, caused by access of resource using incompatible type ('type confusion') in Defender Firewall Service.

CVE-2025-53810 CVSS:6.7

Microsoft Windows could allow a local authenticated attacker to gain elevated privileges on the system, caused by access of resource using incompatible type ('type confusion') in Defender Firewall Service.

CVE-2025-54111 CVSS:7.8

Microsoft Windows could allow a local authenticated attacker to gain elevated privileges on the system, caused by use-after-free in UI XAML Phone DatePickerFlyout.

CVE-2025-54917 CVSS:4.3

Microsoft Windows could allow a remote attacker to bypass security restrictions, caused by protection mechanism failure in MapUrlToZone.

CVE-2025-54919 CVSS:7.5

Microsoft Windows could allow a local authenticated attacker to execute arbitrary code on the system, caused by concurrent execution using shared resource with improper synchronization ('race condition') in Win32K - GRFX.

Impact

  • Code Execution
  • Security Bypass
  • Privilege Escalation
  • Information Disclosure

Indicators of Compromise

CVE

  • CVE-2025-54097

  • CVE-2025-54095

  • CVE-2025-54109

  • CVE-2025-53810

  • CVE-2025-54111

  • CVE-2025-54917

  • CVE-2025-54919

Affected Vendors

  • Microsoft

Affected Products

  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2022
  • Microsoft Windows Server 2019 (Server Core installation)
  • Microsoft Windows Server 2012 (Server Core installation)
  • Microsoft Windows Server 2012 R2 (Server Core installation)
  • Microsoft Windows Server 2016 (Server Core installation)
  • Microsoft Windows 10 Version 1507
  • Microsoft Windows 11 version 22H2
  • Microsoft Windows 10 Version 1809
  • Microsoft Windows 11 version 22H3
  • Microsoft Windows 11 Version 23H2
  • Microsoft Windows Server 2022 - 23H2 Edition (Server Core installation)
  • Microsoft Windows 10 Version 21H2
  • Microsoft Windows 10 Version 22H2
  • Microsoft Windows 10 Version 1607

Remediation

Use Microsoft Automatic Update to apply the appropriate patch for your system, or the Microsoft Security Update Guide to search for available patches.

CVE-2025-54097

CVE-2025-54095

CVE-2025-54109

CVE-2025-53810

CVE-2025-54111

CVE-2025-54917

CVE-2025-54919