{"id":"CVE-2026-97790","published":"2026-10-13T19:22:17.097","lastModified":"2026-10-16T10:40:56.477","description":"Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to perform tampering locally.","cvssScore":5.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","cwes":["CWE-59"],"vendors":["microsoft"],"products":["windows 11 24h2","windows 11 25h2","windows 11 26h1","windows 11 26h2","windows server 2022","windows server 2025"],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97790","tags":["Patch","Vendor Advisory"]}],"exploitRefs":[],"hasPoc":false,"ai":null}