Multiple vulnerabilities in Microsoft NTFS

1) Out-of-bounds read

EUVDB-ID: #VU107267

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-27742

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

Exploit availability: No

Description

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 10 21H2 10.0.19041.3920 - 11 24H2 10.0.26100.3476

Windows Server: 2008 R2 6.1.7601.27117 - 2025 10.0.26100.3476

CPE2.3

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27742

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds read

EUVDB-ID: #VU107270

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-27483

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

Exploit availability: No

Description

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 10 1607 10.0.14393.10 - 10 1809 10.0.17763.7009

Windows Server: 2012 R2 6.3.9600.21871 - 2019 10.0.17763.7009

CPE2.3

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27483

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Out-of-bounds read

EUVDB-ID: #VU107269

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-27733

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

Exploit availability: No

Description

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 10 1607 10.0.14393.10 - 10 1809 10.0.17763.7009

Windows Server: 2008 R2 6.1.7601.27117 - 2019 10.0.17763.7009

CPE2.3

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27733

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Out-of-bounds read

EUVDB-ID: #VU107268

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-27741

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

Exploit availability: No

Description

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 10 1607 10.0.14393.10 - 10 1809 10.0.17763.7009

Windows Server: 2008 R2 6.1.7601.27117 - 2019 10.0.17763.7009

CPE2.3

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27741

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Risk	High
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2025-27742 CVE-2025-27483 CVE-2025-27733 CVE-2025-27741
CWE-ID	CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system
Vendor	Microsoft