#VU79182 Input validation error in Visual Studio and .NET - CVE-2023-35390

Vulnerability identifier: #VU79182

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-35390

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Visual Studio
Universal components / Libraries / Software for developers
.NET
Other software / Other software solutions

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insufficient validation of user-supplied input in .NET and Visual Studio. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Visual Studio: 17.2.0 17.2.32505.173 - 17.2.17 17.2.33829.164, 17.4.0 17.4.33103.184 - 17.4.9 17.4.33829.165, 17.6.0 17.6.33712.159 - 17.6.5 17.6.33829.357

.NET: 6.0.1 - 6.0.20, 7.0.1 - 7.0.9

---

External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-35390

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.