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High CVSS 7.8

CVE-2026-50467

Microsoft 365 Apps

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

What this means

Exposure
Exploitable with local access to the machine and without authentication — but only if a user opens booby-trapped content.
Impact
An attacker can read sensitive data, modify or destroy data and take the service offline.
Weakness
Already-freed memory is reused, letting the attacker reclaim it and hijack execution.
Likelihood
Its EPSS score stays low: nothing points to imminent exploitation, which is no reason to leave it unpatched.

What to doFold into the next patch cycle.

Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.

Published
14 July 2026
CVSS
7.8 (v3.1) CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
0.34% probability of exploitation within 30 days · above 27% of all CVEs
Weakness
CWE-416
Sources
nvd
References

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