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Microsoft security advisory – September 2026 monthly rollup (AV26-896) – Update 1

medcccs_caPublished 2026-09-08

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MITRE ATT&CK techniques

SharepointT1213.002
VulnerabilitiesT1588.006

Indicators of compromise

CVE-2026-81963cve
CVE-2026-85880cve

Original source: https://cyber.gc.ca/en/alerts-advisories/microsoft-security-advisory-september-2026-monthly-rollup-av26-896