CVE-2026-55057
Microsoft Office Information Disclosure vulnerability
MSRC advisory July 14, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-55057
- Affected products
- Microsoft Office Information Disclosure · Microsoft Microsoft Office Information Disclosure · Microsoft
What happened
Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally.
What it means for your business
Microsoft Office Information Disclosure vulnerability (CVE-2026-55057) was added to Microsoft’s security update guidance. Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally. If you need help checking exposure, call (864) 335-9223.
Sources
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