CVE-2026-77906
Visual Studio Remote Code Execution Vulnerability
CVE-2026-77906 is a high vulnerability (CVSS 8.8) in Microsoft Visual Studio 2026 Version 18.9, published September 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.82%, the 57th percentile. No source names a fixed version.
- Severity
- 8.8 HighCVSS 3.1, CVE List
- Exploit chance
- 0.82%EPSS, 57th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Visual Studio Remote Code Execution Vulnerability
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-77906- CVSS 3.1
- 8.8 High
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 - Weakness
- CWE-122
- Updated
- 2026-11-10
EUVDEUVD-2026-73883
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2026-73883- CVSS 3.1
- 8.8 High
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 - Updated
- 2026-11-10
GitHub AdvisoriesGHSA-8834-2x42-5wxx
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over...
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
- Record
GHSA-8834-2x42-5wxx- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
NVD
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-77906- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | CVE List | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.