Description
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Affected products
microsoft: 365 apps; microsoft: office 2021; microsoft: office 2024
References1
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70300 Vendor Advisory
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 67 · as of 11 November 2026
- CWE
- CWE-822
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.