365 Apps
CVE-2026-20944
HIGH
Severity by source
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.
AnalysisAI
Microsoft Office Word contains an out-of-bounds read vulnerability that enables local code execution on affected systems. Users of Microsoft 365 Apps and Office Long Term Servicing Channel are at risk, as an attacker with local access can exploit this memory safety flaw to execute arbitrary code with full system privileges. No patch is currently available for this high-severity vulnerability.
Technical ContextAI
Classified as CWE-125 (Out-of-bounds Read). Affects 365 Apps. Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.
RemediationAI
Monitor vendor advisories for a patch.
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Same weakness CWE-125 – Out-of-bounds Read
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External POC / Exploit Code
Leaving vuln.today