CVE-2026-25180: Microsoft 365 Copilot

Medium severity, CVSS 5.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Out-of-bounds read in Microsoft Graphics Component allows an unauthorized attacker to disclose information locally.

Affected products

• Microsoft 365 Copilot: before 16.0.19822.20000 (fixed in 16.0.19822.20000)
• Microsoft Windows 10 1607: before 10.0.14393.8957 (fixed in 10.0.14393.8957)
• Microsoft Windows 10 1809: before 10.0.17763.8511 (fixed in 10.0.17763.8511)
• Microsoft Windows 10 21h2: before 10.0.19044.7058 (fixed in 10.0.19044.7058)
• Microsoft Windows 10 22h2: before 10.0.19045.7058 (fixed in 10.0.19045.7058)
• Microsoft Windows 11 23h2: before 10.0.22631.6783 (fixed in 10.0.22631.6783)
• Microsoft Windows 11 24h2: before 10.0.26100.7979 (fixed in 10.0.26100.7979)
• Microsoft Windows 11 25h2: before 10.0.26200.7979 (fixed in 10.0.26200.7979)
• Microsoft Windows 11 26h1: before 10.0.28000.1719 (fixed in 10.0.28000.1719)
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: before 10.0.14393.8957 (fixed in 10.0.14393.8957)
• Microsoft Windows Server 2019: before 10.0.17763.8511 (fixed in 10.0.17763.8511)
• Microsoft Windows Server 2022: before 10.0.20348.4830 (fixed in 10.0.20348.4830)
• Microsoft Windows Server 2022 23h2: before 10.0.25398.2207 (fixed in 10.0.25398.2207)
• Microsoft Windows Server 2025: before 10.0.26100.32463 (fixed in 10.0.26100.32463)

Published 2026-03-10. Last modified 2026-06-17.