CVE-2026-45460

Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.

Score

CVSS 3.1 4.7 Medium

Status

Modified - secure@microsoft.com

Published

2026-06-09

Last modified

2026-09-24

Weaknesses

CWE-126

Affected products

• 365 Apps (Microsoft)
• 365 Copilot (Microsoft)
• Microsoft 365 (Microsoft)
• Office (Microsoft)
• Office 2019 (Microsoft)
• Office 2021 (Microsoft)
• Office 2024 (Microsoft)
• Office 365 (Microsoft)
• Office Macos 2021 (Microsoft)
• Office Macos 2024 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45460