CVE-2026-63521
Microsoft Office Word Information Disclosure vulnerability
MSRC advisory August 11, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-63521
- Affected products
- Microsoft Office Word Information Disclosure · Microsoft Microsoft Office Word Information Disclosure · Microsoft
What happened
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
What it means for your business
Microsoft Office Word Information Disclosure vulnerability (CVE-2026-63521) was added to Microsoft’s security update guidance. Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally. If you need help checking exposure, call (864) 335-9223.
Sources
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