{"cve":"CVE-2026-41091","nvd":{"published":"2026-05-20T13:16:29.173","modified":"2026-07-24T10:10:00.197","status":"Analyzed","description":"Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-59"],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41091","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41091"],"products":["microsoft:malware_protection_engine"],"source":"nvd","synced_at":"2026-10-19T22:35:16.954578616+00:00"},"epss":{"cve":"CVE-2026-41091","score":0.08202,"percentile":0.94877,"date":"2026-10-31"},"kev":{"cve":"CVE-2026-41091","date_added":"2026-05-20","due_date":"2026-06-03","vendor":"Microsoft","product":"Defender","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}