{"schema":"threatline.record/2","record":{"id":"CVE-2026-81963","aliases":[],"summary":"Microsoft Windows Link Following Vulnerability","details":"Microsoft Windows Update Stack contains a link following vulnerability that allows a local attacker to escalate privileges locally up to SYSTEM.","categories":["Operating systems"],"product":"Windows","vendor":"Microsoft","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-81963","source_modified_at":"2026-10-14T23:14:33.668Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Windows 11 version 23H2","vendor":"Microsoft","versions":[{"version":"10.0.22631.0","lessThan":"10.0.22631.7582","versionType":"custom","status":"affected"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-81963","source_modified_at":"2026-10-14T23:14:33.668Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Windows 11 Version 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URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.00393,"percentile":0.32362,"score_date":"2026-10-23"},"published_at":"2026-09-08T17:19:13.121Z","modified_at":"2026-10-14T23:14:33.668Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-81963","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-14T23:14:33.668Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-81963","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"url":"https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-81963","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81963","source":"CISA KEV"},{"source":"CVE List","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81963","tags":["vendor-advisory","patch"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-81963","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2026-09-07T00:00:00+00:00"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-14T23:14:33.668Z","content_hash":"fe2e7b93d3734ef14ff0da6590ce38c9b96ebaf982af32e321e6917b4add261c"}}