CVE-2026-81399
Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVSS
5.5
Medium
EPSS
—
KEV
—
Exploit Today
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0-100
Published: Sep 8, 2026 · Last modified: Sep 8, 2026 · CWE-126
Not enough EPSS history yet.
Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-839515.5 MED—
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———Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.5hCVE-2026-785164.3 MED—
———Buffer over-read in Windows Storage allows an unauthorized attacker to disclose information with a physical attack.5hCVE-2026-730296.5 MED—
———Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network.5hCVE-2026-729746.5 MED—
———Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.5hCVE-2026-729327.5 HIG—
———Buffer over-read in Windows Message Queuing Queue Manager allows an unauthorized attacker to disclose information over a network.5h