Microsoft Office Graphics Component Remote Code Execution Vulnerability
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-78439US | high8.8 | — | ||
Stack-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network. | ||||
references
External citations — patches, advisories, analysis.
- CVE-2026-78439 Microsoft Office Graphics Component Remote Code Execution Vulnerability - CSAFself
- CVE-2026-78439 Microsoft Office Graphics Component Remote Code Execution Vulnerability - HTMLself
- Microsoft Support Lifecycleexternal
- Common Vulnerability Scoring Systemexternal
- Microsoft Exploitability Indexexternal
remediations (4)
- FixedMicrosoft Office 365 for Mac
16.113.26091433:Security Update:https://www.microsoft.com/en-us/microsoft-365/mac/microsoft-365-for-mac?msockid=35f9adb0e74b61392038b90de6fe608c
https://www.microsoft.com/en-us/microsoft-365/mac/microsoft-365-for-mac?msockid=35f9adb0e74b61392038b90de6fe608c - FixedMicrosoft Office LTSC for Mac 2021
16.113.26091433:Security Update:https://go.microsoft.com/fwlink/p/?linkid=831049
https://go.microsoft.com/fwlink/p/?linkid=831049 - FixedMicrosoft Office LTSC for Mac 2024
16.113.26091433:Security Update:https://go.microsoft.com/fwlink/p/?linkid=831049
https://go.microsoft.com/fwlink/p/?linkid=831049 - FixedMicrosoft Office for Android
16.0.20430.20000:Security Update:https://support.google.com/googleplay/answer/113412?hl=en
https://support.google.com/googleplay/answer/113412?hl=en
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan