CVE-2026-70276 Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally

Description

Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

Affected products and versions

Product	Affected versions	Fixed in
Microsoft 365 Apps for Enterprise 16.0	16.0.1 → latest	No fix stated
Microsoft Office LTSC 2021 16.0	16.0.1 → < 16.0.14334.20974	16.0.14334.20974
Microsoft Office LTSC 2024 16.0	16.0.0 → < 16.0.17932.21056	16.0.17932.21056

Other CVEs of Microsoft 365 Apps for Enterprise

The 931 CVEs of Microsoft 365 Apps for Enterprise →

CVE-2026-108454 Buffer over-read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network 6.5 Medium CVE-2026-108455 Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network 6.5 Medium CVE-2026-108453 Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network 6.5 Medium CVE-2026-108451 Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code over a network 8.8 High