Advisoriesby IbisMicrosoftCVE-2026-78439
Microsoft Graphics Component: stack buffer overflow
Fix: upgrade to 16.113.26091433 or later (3 fixed versions below)
Stack-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Microsoft Office 365 for Mac Product | >= 1.0.0, < 16.113.26091433 | 16.113.26091433 |
| Microsoft Office LTSC for Mac 2021 Product | >= 16.0.1, < 16.113.26091433 | 16.113.26091433 |
| Microsoft Office LTSC for Mac 2024 Product | >= 16.0.0, < 16.113.26091433 | 16.113.26091433 |
| Microsoft Office for Android Product | >= 16.0.1, < 16.0.20430.20000 | 16.0.20430.20000 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-121