{"id":"CVE-2026-70149","published":"2026-10-13T19:19:28.033","lastModified":"2026-10-16T16:20:37.687","description":"Exposure of sensitive information to an unauthorized actor in Windows Client Side Caching driver (csc.sys) allows an authorized attacker to disclose information locally.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwes":["CWE-122","CWE-190"],"vendors":[],"products":[],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70149","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The Windows Client Side Caching driver (csc.sys) has a vulnerability that allows local attackers to access sensitive information that should be restricted. This flaw enables unauthorized data disclosure through a kernel-mode driver component.","exploitability":"Exploitation requires local access to a Windows system with the CSC service running, making it moderately difficult to achieve without prior compromise but possible through lateral movement or user interaction.","blast_radius":"If exploited, this vulnerability could allow attackers to access cached files and related metadata, potentially exposing sensitive documents, credentials, or application data that was previously protected by the caching mechanism.","remediation":"Disable the Client Side Caching service immediately using 'sc config csc start= disabled' until a patch is available, as no fixed version has been published yet.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["privilege-escalation","information-disclosure","windows-kernel"],"model":"garnet-coder","analyzedAt":"2026-10-18T09:55:17.668Z"}}