CVE-2026-97016

CRITICALCVSS 9.8/10

Last modified

CVE-2026-97016 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network..

Description

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

Metrics

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
MicrosoftMicrosoft 365 Apps for Enterprise>= 16.0.1, < https://aka.ms/OfficeSecurityReleases
MicrosoftMicrosoft Office LTSC 2021>= 16.0.1, < 16.0.14334.20974
MicrosoftMicrosoft Office LTSC 2024>= 16.0.0, < 16.0.17932.21056

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-97016?
Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
How severe is CVE-2026-97016?
CVE-2026-97016 has a CVSS score of 9.8/10 (CRITICAL severity).
How do I fix CVE-2026-97016?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST