CVE-2026-112753
Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability
CVE-2026-112753 is a high vulnerability (CVSS 7.0) in Microsoft Windows 11 Version 26h1, published November 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.31%, the 23rd percentile. No source names a fixed version.
- Severity
- 7.0 HighCVSS 3.1, CVE List
- Exploit chance
- 0.31%EPSS, 23rd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
Access of resource using incompatible type ('type confusion') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
What each source reports
CVE List Score used
Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability
Access of resource using incompatible type ('type confusion') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
- Record
CVE-2026-112753- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-843
- Updated
- 2026-11-10
EUVDEUVD-2026-121848
Access of resource using incompatible type ('type confusion') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
- Record
EUVD-2026-121848- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-10
GitHub AdvisoriesGHSA-7cp6-5c5m-3w8c
Access of resource using incompatible type ('type confusion') in Windows Container Isolation FS...
Access of resource using incompatible type ('type confusion') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
- Record
GHSA-7cp6-5c5m-3w8c- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-843
- Updated
- 2026-11-10
NVD
Access of resource using incompatible type ('type confusion') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
- Record
CVE-2026-112753- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-843
- 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.