PT-2026-70524 · Microsoft · Windows Container Isolation Fs Filter Driver+1
CVE-2026-62772
·
Published
2026-08-11
·
Updated
2026-08-13
CVSS v3.1
7.8
High
| 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 Container Isolation FS Filter Driver (unionfs.sys) (affected versions not specified)
Description
A heap-based buffer overflow occurs in the Windows Container Isolation FS Filter Driver (unionfs.sys). This issue allows an authorized attacker to elevate privileges locally on the system. A heap-based buffer overflow is a memory corruption error that happens when a program writes more data to a heap-allocated buffer than it can hold.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Heap Based Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Windows
Windows Container Isolation Fs Filter Driver