Out-of-bounds read in Microsoft Office for macOS - CVE-2026-70315
Published: August 12, 2026
Vulnerability identifier: #VU141845
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-70315
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to out-of-bounds read in Microsoft Office when processing a specially crafted file in the Preview Pane. A remote attacker can trick the victim into viewing a crafted file to disclose sensitive information.
The disclosed data is limited to small portions of heap memory. User interaction is required to view the crafted content.
Affected software
Microsoft Office for macOS
How to mitigate CVE-2026-70315
Install security update from vendor's website.
Microsoft Office for macOS - update to 16.112.26081010