PT-2025-1107 · Microsoft · Windows Cloud Files Mini Filter Driver+1

Ranchoice · Published 2025-01-14 · Updated 2025-01-18 · CVE-2025-21271

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows Cloud Files Mini Filter Driver (affected versions not specified)

Description The issue is related to a buffer overflow in memory, which can be exploited to elevate privileges. This can allow an attacker to affect the system. There is no information provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

LPE

Buffer Over-read

Weakness Enumeration

CWE-126

Related Identifiers

BDU:2025-00363

CVE-2025-21271

Affected Products

Windows

Windows Cloud Files Mini Filter Driver

References · 9

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21271 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21271 · Security Note
• https://osv.dev/vulnerability/CVE-2025-21271 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-00363 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-21271 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-21271 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21282 · Vendor Advisory
• https://twitter.com/windowsforum/status/1879247368886902842 · Twitter Post
• https://twitter.com/CVEnew/status/1880625701529022555 · Twitter Post