Microsoft Office PowerPoint: Remote Code Execution via Use-After-Free
Summary
A use-after-free flaw in Microsoft Office PowerPoint allows remote code execution. An attacker can run code on the victim's computer if the user opens a crafted presentation, typically delivered by email or a download link. No privileges are required, but user interaction is needed. Microsoft has published fixes for Microsoft 365 Apps, Office LTSC and Office for Mac.
Affected
- Microsoft 365 Apps for Enterprise (32-bit and x64): 16.0.1 before the build listed at https://aka.ms/OfficeSecurityReleases
- Office 365 for Mac: 1.0.0 before 16.115.26110837
- Office LTSC 2021 (32-bit and x64): 16.0.1 before 16.0.14334.21048
- Office LTSC 2024: 16.0.0 before the fixed build (see below)
- Office LTSC for Mac 2021: 16.0.1 before 16.115.26110837
- Office LTSC for Mac 2024: 16.0.0 before 16.115.26110837
Fixed in
- Microsoft 365 Apps for Enterprise: Unknown (build not stated in the CVE record; check the Microsoft release page)
- Office 365 for Mac: 16.115.26110837
- Office LTSC 2021: 16.0.14334.21048
- Office LTSC 2024: 16.0.17932.21140 (from a third-party tracker, not yet verified against Microsoft's advisory)
- Office LTSC for Mac 2021 and 2024: 16.115.26110837
Workaround
Unknown. No workaround is documented in the sources. Install the Microsoft 365 / Office security update.
Exploitation
- Exploited in the wild: Unknown, no evidence found
- Microsoft exploit code maturity rating: Unproven
- Public proof of concept: none found
- CISA KEV: not listed according to a third-party tracker
- CISA SSVC: Exploitation none, automatable no, technical impact total
Our recommendation
- Install the Microsoft 365 / Office update on all Windows and Mac clients as a priority.
- Check LTSC installations manually, as they are often not updated automatically.
- Verify the fixed build numbers on the Microsoft Security Update Guide.
- Treat unsolicited presentations received by email or download links as untrusted.
- Monitor for reports of active exploitation and apply further guidance promptly.
Information from Microsoft (Patch Tuesday November 2026)
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Microsoft Security Update Guide (CVE-2026-112737) msrc.microsoft.com
- CVE Record (CNA: Microsoft) www.cve.org
- Strix tracker (third-party, unverified) www.strix.ai
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 10 Nov 2026, 22:48.
Original description (NVD)
Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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