Advisoriesby IbisMicrosoftCVE-2026-77906
Microsoft Visual Studio 2026 version 18.9: heap buffer overflow
Fix: upgrade to 18.9.3 or later
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Microsoft Visual Studio 2026 version 18.9 Product | >= 18.9.0, < 18.9.3 | 18.9.3 |
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-122