CVE-2026-70256: microsoft 365_apps, microsoft office_2024

CVSS 8.8 (high) · published 2026-10-13

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

Affected products (NVD): microsoft 365_apps, microsoft office_2024

Weakness: CWE-122

Source: NVD CVE-2026-70256

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70256

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