SB2025040935 - Multiple vulnerabilities in Microsoft NTFS

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2025-27742)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in NTFS. A remote attacker can trick a victim to mount a specially crafted VHD, trigger an out-of-bounds read error and read contents of memory on the system.

2) Out-of-bounds read (CVE-ID: CVE-2025-27483)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in NTFS. A remote attacker can trick a victim to mount a specially crafted VHD, trigger an out-of-bounds read error and read contents of memory on the system, leading to privilege escalation.

3) Out-of-bounds read (CVE-ID: CVE-2025-27733)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in NTFS. A remote attacker can trick a victim to mount a specially crafted VHD, trigger an out-of-bounds read error and read contents of memory on the system, leading to privilege escalation.

4) Out-of-bounds read (CVE-ID: CVE-2025-27741)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in NTFS. A remote attacker can trick a victim to mount a specially crafted VHD, 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

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27742
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27483
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27733
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27741