SB20260414150 - Multiple vulnerabilities in Microsoft Windows Projected File System

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Main Vulnerability Database SB20260414150

SB20260414150 - Multiple vulnerabilities in Microsoft Windows Projected File System

Published: April 14, 2026

Security Bulletin ID SB20260414150
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Race condition (CVE-ID: CVE-2026-27927)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in Windows Projected File System. A local user can exploit the race and escalate privileges on the system.


2) Use-after-free (CVE-ID: CVE-2026-32078)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Windows Projected File System. A local user can gain elevated privileges on the target system.


3) Double free (CVE-ID: CVE-2026-32074)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the target system.

The vulnerability exists due to a boundary error in Windows Projected File System. A local user can pass specially crafted data to the application, trigger double free error and gain elevated privileges on the target system.


4) Double free (CVE-ID: CVE-2026-32069)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the target system.

The vulnerability exists due to a boundary error in Windows Projected File System. A local user can pass specially crafted data to the application, trigger double free error and gain elevated privileges on the target system.


5) Out-of-bounds read (CVE-ID: CVE-2026-26184)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Windows Projected File System. A local user can trigger an out-of-bounds read error and read contents of memory on the system, leading to privilege escalation.


Remediation

Install update from vendor's website.

References