CVE-2026-113771

Name of the Vulnerable Software and Affected Versions Windows Container Isolation FS Filter Driver (unionfs.sys) (affected versions not specified)

Description An off-by-one error in the unionfs.sys driver allows an authorized attacker to elevate privileges locally. An off-by-one error is a logic error where an iterative loop or array index is off by one, potentially leading to memory corruption.

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