Full Report
Microsoft has released Windows 11 KB5065426 and KB5065431 cumulative updates for versions 24H2 and 23H2 to fix security vulnerabilities and issues. [...]
Analysis Summary
This summary is based solely on the provided text, which primarily details cumulative updates, feature rollouts, and fixes for Windows 11. **Crucially, the article does not explicitly mention any specific new CVE identifiers or associated severity scores being patched.** The fixes described are generally categorized as addressing "security vulnerabilities and issues" within the scope of the September 2025 Patch Tuesday.
# Vulnerability: Security Fixes in Windows 11 September 2025 Cumulative Updates
## CVE Details
- CVE ID: **Not explicitly provided in the text.** (The text mentions they contain September 2025 Patch Tuesday security patches.)
- CVSS Score: **Not explicitly provided in the text.**
- CWE: **Unknown**
## Affected Systems
- Products: Windows 11 (24H2, 23H2, Enterprise/Server with Hotpatch)
- Versions:
- Windows 11 24H2 (pre-update)
- Windows 11 23H2 (pre-update)
- Configurations: Standard installations; specific configurations related to the nature of the underlying vulnerabilities are not detailed.
## Vulnerability Description
The article announces the release of cumulative updates (KB5065426 for 24H2, KB5065431 for 23H2) that address security vulnerabilities discovered in previous months, as part of the September 2025 Patch Tuesday.
Specific vulnerabilities are not detailed, but fixes address:
* Issues related to **dbgcore.dll** (potential app/explorer.exe crashes).
* Issues related to **Kerberos** (potential crash when accessing cloud file shares).
* Issues in **Login** process (blank white screen/“just a moment” delays).
* An underlying issue in **textinputframework.dll** causing crashes in Notepad/Sticky Notes.
* A known issue with the **Microsoft Pluton Cryptographic Provider** failing to load, resulting in Event ID 57.
## Exploitation
- Status: **Unknown** (The text only confirms that security patches are included.)
- Complexity: **Unknown**
- Attack Vector: **Unknown**
## Impact
- Confidentiality: **Unknown** (Depends on the specific unlisted CVEs.)
- Integrity: **Unknown** (Depends on the specific unlisted CVEs.)
- Availability: **Unknown** (Depends on the specific unlisted CVEs, though stability fixes are present.)
## Remediation
### Patches
The following cumulative updates are available:
* **Windows 11 24H2:** KB5065426 (Build 26100.6584)
* **Windows 11 23H2:** KB5065431 (Build 226x1.5909)
* **Windows 11 Enterprise/Server with Hotpatch:** KB5065474 (Build 26100.6508)
Updates can be installed via Start > Settings > Windows Update, or manually downloaded from the Microsoft Update Catalog.
### Workarounds
- No specific workarounds are detailed for unlisted vulnerabilities.
- Users relying on **PowerShell 2.0** should update scripts/tools, as PS 2.0 components might be removed or deprioritized.
## Detection
- **Indicators of Compromise:** None specified for the security vulnerabilities.
- **Detection Methods and Tools:** The update aims to resolve Event ID 57 related to the Pluton provider failing to load. Detection related to other vulnerabilities is not provided.
## References
- Vendor Advisory (Implied): Microsoft KB articles for the respective updates (KB5065426, KB5065431).
- Relevant Links:
* Microsoft Update Catalog (for manual download): `https://www.catalog.update.microsoft.com/Search.aspx?q=windows%2011` (defanged)
* Support link for KB5065426: `https://support.microsoft.com/help/KB5065426` (defanged)
* Support link for KB5065431: `https://support.microsoft.com/help/5065431` (defanged)