VDB-357500 · CVE-2026-32178 · EUVD-2026-22562

Microsoft .NET up to 2025 special element

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Microsoft .NET 2016/2017/2019/2022/2025. Affected by this vulnerability is an unknown functionality. Such manipulation leads to special element. This vulnerability is referenced as CVE-2026-32178. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Microsoft .NET 2016/2017/2019/2022/2025. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a special element vulnerability. Using CWE to declare the problem leads to CWE-138. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as control elements or syntactic markers when they are sent to a downstream component. Impacted is confidentiality. CVE summarizes:

Improper neutralization of special elements in .NET allows an unauthorized attacker to perform spoofing over a network.

The weakness was published 04/14/2026 as confirmed security update guide (Website). The advisory is shared for download at msrc.microsoft.com. This vulnerability is handled as CVE-2026-32178. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/02/2026).

The vulnerability scanner Nessus provides a plugin with the ID 306475 (Linux Distros Unpatched Vulnerability : CVE-2026-32178), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.0.26, 9.0.15, 10.0.6, 17.12.19 or 17.14.30 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (306475), EUVD (EUVD-2026-22562) and CERT Bund (WID-SEC-2026-1100). Once again VulDB remains the best source for vulnerability data.

Affected

Microsoft .NET Framework
Microsoft PowerShell
Red Hat Enterprise Linux
Ubuntu Linux
Oracle Linux
Microsoft .NET
Microsoft Visual Studio 2017
Microsoft Visual Studio Code
Microsoft Visual Studio 2022
Microsoft Visual Studio 2019

Productinfo

Vendor

Microsoft

Name

.NET

Version

License

commercial

Website

Vendor: https://www.microsoft.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.5
Vendor Vector (Microsoft): 🔒

CNA Base Score: 7.5
CNA Vector (Microsoft): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Special element
CWE: CWE-138 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Unproven

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 306475
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-32178

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

Upgrade: .NET 8.0.26/9.0.15/10.0.6/17.12.19/17.14.30

Timelineinfo

04/14/2026 VulDB entry created
04/14/2026 +0 days Advisory disclosed
04/14/2026 +0 days Countermeasure disclosed
07/02/2026 +78 days VulDB entry last update