CVE-2026-105527
Windows Encrypting File System (EFS) Denial of Service Vulnerability
CVE-2026-105527 is a medium vulnerability (CVSS 5.5) in Microsoft Windows 10 Version 1607, published November 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. No source names a fixed version.
- Severity
- 5.5 MediumCVSS 3.1, CVE List
- Exploit chance
- 0.46%EPSS, 40th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
Untrusted pointer dereference in Windows Encrypting File System (EFS) allows an authorized attacker to deny service locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
Affected products
- microsoft windows 10 version 1607
- microsoft windows 10 version 1809
- microsoft windows 10 version 21h2
- microsoft windows 10 version 22h2
- microsoft windows 11 version 23h2
- microsoft windows 11 version 24h2
- microsoft windows 11 version 25h2
- microsoft windows 11 version 26h1
- microsoft windows 11 version 26h2
- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
- microsoft windows server 2019
What each source reports
CVE List Score used
Windows Encrypting File System (EFS) Denial of Service Vulnerability
Untrusted pointer dereference in Windows Encrypting File System (EFS) allows an authorized attacker to deny service locally.
- Record
CVE-2026-105527- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Weakness
- CWE-822
- Updated
- 2026-11-10
EUVDEUVD-2026-122024
Untrusted pointer dereference in Windows Encrypting File System (EFS) allows an authorized attacker to deny service locally.
- Record
EUVD-2026-122024- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-10
GitHub AdvisoriesGHSA-w22w-3j52-c3hr
Untrusted pointer dereference in Windows Encrypting File System (EFS) allows an authorized...
Untrusted pointer dereference in Windows Encrypting File System (EFS) allows an authorized attacker to deny service locally.
- Record
GHSA-w22w-3j52-c3hr- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-822
- Updated
- 2026-11-10
NVD
Untrusted pointer dereference in Windows Encrypting File System (EFS) allows an authorized attacker to deny service locally.
- Record
CVE-2026-105527- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-822
- Updated
- 2026-11-11
History
| Recorded | Changed | Sources |
|---|---|---|
| published | EUVD | |
| published | EUVD, NVD | |
| aliases, references | GitHub Advisories | |
| cwes, references, severity, title | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.