SB2026051358 - Multiple vulnerabilities in Microsoft .NET

Description

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error (CVE-ID: CVE-2026-35433)

The vulnerability allows a local attacker to escalate privileges on the target system.

The vulnerability exists due to insufficient validation of user-supplied input in .NET. A local attacker can gain elevated privileges on the system.

2) Heap-based buffer overflow (CVE-ID: CVE-2026-32177)

The vulnerability allows a local attacker to escalate privileges on the target system.

The vulnerability exists due to a boundary error in .NET. A local attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and gain elevated privileges on the system.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35433
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32177