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CVE-2026-78515

NVDCIRCLENISA

EUVD-2026-73306 · Published Sep 8, 2026

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

Technologies

Microsoft Office 2021Microsoft Microsoft 365Microsoft Office 2024Microsoft 365 AppsMicrosoft Office 2016Microsoft Office 2019

Weaknesses

CWE-125

CVSS scores

  • v3.16.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

MITRE ATT&CK

Inferred

Where this vulnerability fits in an attack

Initial Access

References

Potentially impacted assets

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