Out-of-bounds read in Microsoft products - CVE-2026-72977
Published: September 9, 2026
Vulnerability identifier: #VU148122
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-72977
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose information.
The vulnerability exists due to an out-of-bounds read in Microsoft Office PowerPoint when processing PowerPoint content through the Preview Pane. A remote attacker can exploit the vulnerability to disclose information.
User interaction is required.
Affected software
Microsoft 365 Apps for Enterprise
Microsoft PowerPoint
Microsoft Office
Microsoft PowerPoint
Microsoft Office
How to mitigate CVE-2026-72977
Install security update from vendor's website.
Microsoft 365 Apps for Enterprise - update to 16.0.20326.20138
Microsoft PowerPoint - update to 16.0.5569.1000
Microsoft Office - addressed in versions 16.0.10417.20207, 16.0.14334.20906, 16.0.17932.20976
Microsoft PowerPoint - update to 16.0.5569.1000
Microsoft Office - addressed in versions 16.0.10417.20207, 16.0.14334.20906, 16.0.17932.20976