{"id":"CVE-2026-71336","aliases":["EUVD-2026-73089","GHSA-cw47-r85q-97f6"],"status":"published","title":"Windows Work Folder Service Remote Code Execution Vulnerability","description":"Integer overflow or wraparound in Windows Work Folder Service allows an authorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00913,"percentile":0.60575,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2026-09-08T17:12:25Z","modified":"2026-11-10T21:31:11Z","products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2012 r2 (server core installation)"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_server_2012"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-71336","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-71336"},{"url":"https://github.com/advisories/GHSA-cw47-r85q-97f6"}],"sources":{"cve":[{"id":"CVE-2026-71336","title":"Windows Work Folder Service Remote Code Execution Vulnerability","description":"Integer overflow or wraparound in Windows Work Folder Service allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:12:25.051Z","modified":"2026-11-10T21:31:11.277Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-190"],"updated_at":"2026-11-10T22:48:53.557052Z"}],"euvd":[{"id":"EUVD-2026-73089","description":"Integer overflow or wraparound in Windows Work Folder Service allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T17:12:25Z","modified":"2026-11-10T21:31:11Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T22:23:53.008995Z"}],"ghsa":[{"id":"GHSA-cw47-r85q-97f6","title":"Integer overflow or wraparound in Windows Work Folder Service allows an authorized attacker to...","description":"Integer overflow or wraparound in Windows Work Folder Service allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:33:08Z","modified":"2026-09-08T18:33:38Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T15:11:33.442964Z"}],"nvd":[{"id":"CVE-2026-71336","description":"Integer overflow or wraparound in Windows Work Folder Service allows an authorized attacker to execute code over a network.","status":"published","published":"2026-09-08T18:20:13.287Z","modified":"2026-09-24T23:18:43.623Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:12:45.264578Z"}]}}