CVE-2026-112809
Windows Composite Image File System Information Disclosure Vulnerability
CVE-2026-112809 is a medium vulnerability (CVSS 5.5) 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 0.41%, the 35th percentile. No source names a fixed version.
- Severity
- 5.5 MediumCVSS 3.1, CVE List
- Exploit chance
- 0.41%EPSS, 35th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
Improper access control in Windows Composite Image File System allows an authorized attacker to disclose information 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
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
Affected products
What each source reports
CVE List Score used
Windows Composite Image File System Information Disclosure Vulnerability
Improper access control in Windows Composite Image File System allows an authorized attacker to disclose information locally.
- Record
CVE-2026-112809- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Weakness
- CWE-424, CWE-284
- Updated
- 2026-11-12
EUVDEUVD-2026-121883
Improper access control in Windows Composite Image File System allows an authorized attacker to disclose information locally.
- Record
EUVD-2026-121883- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-10
GitHub AdvisoriesGHSA-mjf9-c9mj-32x2
Improper access control in Windows Composite Image File System allows an authorized attacker to...
Improper access control in Windows Composite Image File System allows an authorized attacker to disclose information locally.
- Record
GHSA-mjf9-c9mj-32x2- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-284, CWE-424
- Updated
- 2026-11-12
NVD
Improper access control in Windows Composite Image File System allows an authorized attacker to disclose information locally.
- Record
CVE-2026-112809- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-424, CWE-284
- Updated
- 2026-11-12
History
| Recorded | Changed | Sources |
|---|---|---|
| cwes | CVE List, NVD | |
| cwes | GitHub Advisories, NVD | |
| published | EUVD | |
| published | EUVD, NVD | |
| aliases, references | GitHub Advisories | |
| references, severity, title | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.