VDB
CVE-2026-78439
CVE-2026-78439
PUBLISHED
CVSS 8.8 HIGH
Reported by microsoft · Published September 8, 2026
Stack-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.
Risk Scores
CVSS 3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Office 365 for Mac | - |
| Microsoft | Microsoft Office for Android | 16.0.1 |
| Microsoft | Microsoft Office LTSC for Mac 2021 | - |
| Microsoft | Microsoft Office LTSC for Mac 2024 | - |
| microsoft | office_365 | - |
| microsoft | office_macos_2024 | - |
| Microsoft | Microsoft Office LTSC for Mac 2021 | - |
| Microsoft | Microsoft Office for Android | 16.0.1 |
| microsoft | office_macos_2021 | - |
| microsoft | office | 16.0.1 |
| Microsoft | Microsoft Office 365 for Mac | - |
| Microsoft | Microsoft Office LTSC for Mac 2024 | - |
Timeline
- Sep 8, 2026 Coalition ESS Score
- Sep 8, 2026 CVE Published
- Sep 9, 2026 Security Advisory
- Sep 9, 2026 CVE Updated
References
- Microsoft Office Graphics Component Remote Code Execution Vulnerability vendor-advisorypatch