HighCVE-2026-114151

Azure DevOps: Deserialization of Untrusted Data (CVE-2026-114151)

Published 11.11.2026Sources: BSI

What is affected, what to do

Deserialization of untrusted data in Visual Studio allows an unauthorized attacker to execute code over a network.

The available sources name no fixed version. Check the vendor guidance in the references below.

Conflicting version data — version display is hidden until the data is resolved.

Not sure whether and how you are affected? Ask a question about this vulnerability

Metrics

8.8

XIEM Effective CVSS

Highest available CVSS rating from NVD and vendor data.

Source: NVD, CVSS v3

8.8

CVSS v3

Severity High on the scale from 0 to 10.

Source: BSI

1.5 %

EPSS score

Moderate — model estimates 1-10% exploitation likelihood.

Source: FIRST EPSS, percentile 74.5

Show all metrics

Severity: High
Priority (0–325) The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first? Read in glossary: 90.72 Methodology
Exploit maturity An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack. Read in glossary: no public PoC known
XIEM Effective CVSS XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command. Read in glossary: 8.8 Methodology
CVSS v3 CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions. Read in glossary: 8.8
EPSS score The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“. Read in glossary: 1.5 %; Moderate — model estimates 1-10% exploitation likelihood.
EPSS percentile The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking. Read in glossary: 74.5; High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
KEV status The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching. Read in glossary: —
Published: 11.11.2026
CISA assessment (SSVC): Exploitation: none known · not automatable · Technical impact: total; Source: CISA Vulnrichment, as of 10 November 2026
CWE CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect. Read in glossary: CWE-502, CWE-121

Detection rules

No NEOSEC detection rule is available for this vulnerability yet.

Classification under NIS2 and CRA

Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

NIS2 NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management. Read in glossary: High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
CRA The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates. Read in glossary: From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001 ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security. Read in glossary: Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

Description

Deserialization of untrusted data in Visual Studio allows an unauthorized attacker to execute code over a network.

Source: BSI WID Portal

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

Affected products
		Affected versions	Fixed in
Microsoft	.NET 10.0 installed on Linux	`10.0.0 – < 10.0.15` `10.0.0 – < 10.0.404`	`10.0.15` `10.0.404`
Microsoft	.NET 10.0 installed on Mac OS	`10.0.0 – < 10.0.15` `10.0.0 – < 10.0.404`	`10.0.15` `10.0.404`
Microsoft	.NET 10.0 installed on Windows	`10.0.0 – < 10.0.15` `10.0.0 – < 10.0.404`	`10.0.15` `10.0.404`
Microsoft	.NET 11.0 installed on Linux	`11.0.0-preview.1 – < 11.0.0` `11.0.0-preview.1 – < 11.0.100`	`11.0.0` `11.0.100`
Microsoft	.NET 11.0 installed on Mac OS	`11.0.0-preview.1 – < 11.0.0` `11.0.0-preview.1 – < 11.0.100`	`11.0.0` `11.0.100`
Microsoft	.NET 11.0 installed on Windows	`11.0.0-preview.1 – < 11.0.0` `11.0.0-preview.1 – < 11.0.100`	`11.0.0` `11.0.100`
Microsoft	.NET 8.0 installed on Linux	`8.0.0 – < 8.0.34` `8.0.0 – < 8.0.428`	`8.0.34` `8.0.428`
Microsoft	.NET 8.0 installed on Mac OS	`8.0.0 – < 8.0.34` `8.0.0 – < 8.0.428`	`8.0.34` `8.0.428`
Microsoft	.NET 8.0 installed on Windows	`8.0.0 – < 8.0.34` `8.0.0 – < 8.0.428`	`8.0.34` `8.0.428`
Microsoft	.NET 9.0 installed on Linux	`9.0.0 – < 9.0.0-preview.4.24266.19` `9.0.0 – < 9.0.23` `9.0.0 – < 9.0.321`	`9.0.0-preview.4.24266.19` `9.0.23` `9.0.321`
Microsoft	.NET 9.0 installed on Mac OS	`9.0.0 – < 9.0.0-preview.4.24266.19` `9.0.0 – < 9.0.23` `9.0.0 – < 9.0.321`	`9.0.0-preview.4.24266.19` `9.0.23` `9.0.321`
Microsoft	.NET 9.0 installed on Windows	`9.0.0 – < 9.0.0-preview.4.24266.19` `9.0.0 – < 9.0.23` `9.0.0 – < 9.0.321`	`9.0.0-preview.4.24266.19` `9.0.23` `9.0.321`
Microsoft	Azure DevOps	`≥ 1.0.0`	—
Microsoft	Azure DevOps Server	`≥ 1.0.0`	—
Microsoft	Azure DevOps Server 2025	`1.0.0.0 – < 20260304.1` `≥ 1.0.0.0`	`20260304.1` —
Microsoft	Microsoft Visual Studio 2022 version 17.14	`17.14.0 – < 17.14.45`	`17.14.45`
Microsoft	Microsoft Visual Studio 2026 version 18.11	`18.11.0 – < 18.11.4`	`18.11.4`
Microsoft	Microsoft Visual Studio 2026 version 18.12	`< 18.12.0`	`18.12.0`
Microsoft	Microsoft.AspNetCore.Http.Connections	`1.2.0 – < 1.2.14`	`1.2.14`
Microsoft	Microsoft.AspNetCore.Server.HttpSys	`2.3.10 – < 2.3.14`	`2.3.14`
Microsoft	Microsoft.AspNetCore.SignalR.StackExchangeRedis	`NOT_YET_AVAILABLE – < 10.0.15`	`10.0.15`
Microsoft	Microsoft.AspNetCore.WebUtilities	`2.3.12 – < 11.0.0`	`11.0.0`
Microsoft	Microsoft.dotnet-scaffold	`10.0.0 – < 20.3.0`	`20.3.0`
Microsoft	Microsoft.dotnet-scaffold-aspnet	`9.0.0 – < 20.3.0`	`20.3.0`
Microsoft	Microsoft.DotNet.HotReload.Watch.Aspire	`10.0.300 – < 11.0.100`	`11.0.100`
Microsoft	Microsoft.DotNet.Web.ProjectTemplates.10.0	`10.0.13 – < 10.0.15`	`10.0.15`
Microsoft	Microsoft.DotNet.Web.ProjectTemplates.8.0	`8.0.32 – < 8.0.34`	`8.0.34`
Microsoft	Microsoft.DotNet.Web.ProjectTemplates.9.0	`9.0.21 – < 9.0.23`	`9.0.23`
Microsoft	Microsoft.Extensions.Validation	`11.0.0-rc.1.26425.128 – < 11.0.0`	`11.0.0`
Microsoft	Microsoft.TestPlatform.CLI	`17.2.0 – < 18.11.1`	`18.11.1`
Microsoft	Microsoft.VisualStudio.Web.CodeGeneration.Design	`NOT_YET_AVAILABLE – < 9.0.13`	`9.0.13`
Microsoft	Microsoft.VisualStudio.Web.CodeGenerators.Mvc	`NOT_YET_AVAILABLE – < 9.0.13`	`9.0.13`

From bundled advisories, not CVE-specific (15)

Product list of a bundled advisory that does not state which product this CVE affects.

Products from bundled advisories
		Affected versions	Fixed in
Microsoft	Azure	`Confidential Clean Room` `CycleCloud 8.9.1` `CycleCloud 8.9.2` `File Sync v21` `File Sync v23` `Front Door` `Machine Learning` `Managed Grafana` `msal-node` `Open AI` `Privileged Identity Management (PIM)` `Virtual Machines` `Web Apps`	— — — — — — — — — — — — —
Microsoft	Azure Linux	`3`	—
Microsoft	PowerShell	`7.7`	—

Vendors and products

Affected operating systems

Affected operating systems

Linux	Linux	—
macOS	MacOS X	—
Windows	Windows	—

Weakness classes (CWE)

CWE-502Deserialization of Untrusted Data
Base
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Entry at MITRE CWE-502
CWE-121Stack-based Buffer Overflow
Variant
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
Entry at MITRE CWE-121

References & sources

Microsoft Security Update GuideMicrosoft Leitfaden für SicherheitsupdatesBSI
Microsoft Security Update GuideMicrosoft Security Advisory CVE-2026-109469BSI
Microsoft Security Update GuideAzure DevOps Server Elevation of Privilege Vulnerabilityeuvd, Vendor advisory, Patch
NVD (NIST)vuln/detail/CVE-2026-85923euvd
Microsoft Security Update GuideASP.NET Core Elevation of Privilege Vulnerabilityeuvd, Vendor advisory, Patch, web
github.comdotnet/aspnetcore/security/advisories/GHSA-67wp-ghc2-fw2gweb, euvd
NVD (NIST)vuln/detail/CVE-2026-114146advisory, euvd
github.comdotnet/announcements/issues/504web, euvd
github.comdotnet/aspnetcore/commit/514c86030195fd6b649bb26c48975a043d96b7…web, euvd
github.comdotnet/aspnetcore/commit/db8579880b30153dbd601fa079f49e7e3ce42e…web, euvd
github.comdotnet/aspnetcore/commit/e1ae50f427a49c76528376a5b3af8216bfda55…web, euvd
github.comdotnet/aspnetcore/discussions/70467web, euvd
github.comdotnet/aspnetcore/releases/tag/v10.0.15web, euvd
github.comdotnet/aspnetcore/releases/tag/v11.0.0web, euvd
github.comdotnet/aspnetcore/releases/tag/v8.0.34web, euvd
github.comdotnet/aspnetcore/releases/tag/v9.0.23web, euvd
github.comdotnet/aspnetcorepackage
github.comdotnet/core/blob/main/release-notes/10.0/10.0.15/10.0.15.mdweb, euvd
github.comdotnet/core/blob/main/release-notes/11.0/11.0.0/11.0.0.mdweb, euvd
github.comdotnet/core/blob/main/release-notes/8.0/8.0.34/8.0.34.mdweb, euvd

Changes to this CVE

Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

10.11.2026Record modifiedCISA ADP

CISA assessment (SSVC): exploitation: none known, automatable: no

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
SSVC assessment	added	—	{"id":"CVE-2026-114151","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-11-10T20:03:36.800942Z"}

Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

10.11.2026ReceivedMicrosoft

CVSS V3.1: AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness type: CWE-502, CWE-121

Description added or changed

New references:

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114151

Show 6 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Description	added	—	Deserialization of untrusted data in Visual Studio allows an unauthorized attacker to execute code over a network.
CVSS	added	—	AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)	added	—	CWE-502
Weakness type (CWE)	added	—	CWE-121
Affected versions (publisher)	added	—	New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/114xxx/CVE-2026-114151.json">CVE-2026-114151</a>
Reference	added	—	https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114151

Source identifier: secure@microsoft.com

Linked CVEs

Linked CVEs

High	CVE-2026-85923	Azure DevOps Server Elevation of Privilege Vulnerability	8.8	—
High	CVE-2026-70094	Visual Studio Code Remote Code Execution Vulnerability	8.8	—
Medium	CVE-2026-122985	Microsoft PowerShell Information Disclosure Vulnerability	6.1	—
Medium	CVE-2026-121675	PowerShell Information Disclosure Vulnerability	6.1	—
Medium	CVE-2026-121674	PowerShell Information Disclosure Vulnerability	6.1	—
Medium	CVE-2026-121669	PowerShell Information Disclosure Vulnerability	6.1	—
High	CVE-2026-121665	Visual Studio Code Security Feature Bypass Vulnerability	8.8	—
High	CVE-2026-121664	Visual Studio Code Remote Code Execution Vulnerability	8.3	—
High	CVE-2026-121663	Visual Studio Code Security Feature Bypass Vulnerability	8.8	—
High	CVE-2026-121662	Visual Studio Code Remote Code Execution Vulnerability	8.6	—
High	CVE-2026-121661	Visual Studio Code Security Feature Bypass Vulnerability	7.8	—
High	CVE-2026-121660	Visual Studio Code Security Feature Bypass Vulnerability	7.5	—
Medium	CVE-2026-120796	.NET Denial of Service Vulnerability	5.3	—
Medium	CVE-2026-120783	Azure DevOps Server Elevation of Privilege Vulnerability	6.4	—
High	CVE-2026-120782	Visual Studio Code Security Feature Bypass Vulnerability	7.8	—
High	CVE-2026-120780	Visual Studio Code Remote Code Execution Vulnerability	8.3	—
Critical	CVE-2026-120779	Visual Studio Code Remote Code Execution Vulnerability	9.6	—
High	CVE-2026-119985	Visual Studio Code Remote Code Execution Vulnerability	8.3	—
High	CVE-2026-119983	Visual Studio Code Security Feature Bypass Vulnerability	8.8	—
Medium	CVE-2026-119982	Visual Studio Code Security Feature Bypass Vulnerability	6.5	—
High	CVE-2026-119981	Visual Studio Code Elevation of Privilege Vulnerability	7.0	—
Medium	CVE-2026-119976	Visual Studio Code GitHub Pull Requests and Issues Extension Information Disclosure Vulnerability	6.5	—
High	CVE-2026-119975	Visual Studio Code Remote Code Execution Vulnerability	8.8	—
High	CVE-2026-118749	ASP.NET Core Denial of Service Vulnerability	7.5	—

Show 26 more CVEs

Linked CVEs

High	CVE-2026-118748	ASP.NET Core Denial of Service Vulnerability	7.5	—
Medium	CVE-2026-118746	.NET Security Feature Bypass Vulnerability	6.8	—
High	CVE-2026-118745	Visual Studio Remote Code Execution Vulnerability	8.8	—
High	CVE-2026-118741	ASP.NET Core Elevation of Privilege Vulnerability	8.1	—
High	CVE-2026-114171	Visual Studio Code Security Feature Bypass Vulnerability	8.8	—
High	CVE-2026-114159	Visual Studio Remote Code Execution Vulnerability	8.8	—
High	CVE-2026-114158	Visual Studio Remote Code Execution Vulnerability	8.8	—
High	CVE-2026-114157	ASP.NET Core Security Feature Bypass Vulnerability	7.5	—
Medium	CVE-2026-114156	ASP.NET Core Security Feature Bypass Vulnerability	6.5	—
High	CVE-2026-114155	.NET Elevation of Privilege Vulnerability	7.5	—
High	CVE-2026-114154	ASP.NET Core Denial of Service Vulnerability	7.5	—
High	CVE-2026-114152	Visual Studio Remote Code Execution Vulnerability	8.8	—
High	CVE-2026-114151	Visual Studio Remote Code Execution Vulnerability	8.8	—
Medium	CVE-2026-114150	ASP.NET Core Information Disclosure Vulnerability	5.9	—
High	CVE-2026-114149	ASP.NET Core Denial of Service Vulnerability	7.5	—
High	CVE-2026-114147	ASP.NET Core Denial of Service Vulnerability	7.5	—
Critical	CVE-2026-114146	ASP.NET Core Elevation of Privilege Vulnerability	9.0	—
Medium	CVE-2026-112745	Azure DevOps Server Information Disclosure Vulnerability	6.5	—
High	CVE-2026-109481	ASP.NET Core Elevation of Privilege Vulnerability	7.5	—
High	CVE-2026-109478	ASP.NET Core Denial of Service Vulnerability	7.5	—
Medium	CVE-2026-109476	ASP.NET Core Information Disclosure Vulnerability	6.1	—
High	CVE-2026-109475	.NET Denial of Service Vulnerability	7.5	—
Critical	CVE-2026-109467	Azure DevOps Server Remote Code Execution Vulnerability	9.9	—
High	CVE-2026-105544	.NET Elevation of Privilege Vulnerability	7.5	—
High	CVE-2026-102236	Visual Studio Code Security Feature Bypass Vulnerability	8.6	—
High	CVE-2026-102230	Visual Studio Code Information Disclosure Vulnerability	7.4	—

Linked advisories

NCSC-2026-0473 [1.00] [M/H] Kwetsbaarheden verholpen in Microsoft Developer ToolsNCSC-NL10.11.2026

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<a href="https://intel.neosec.eu/en/cve/CVE-2026-114151"><img src="https://intel.neosec.eu/badge/cve/CVE-2026-114151.svg?lang=en" alt="CVE-2026-114151 – NEOSEC Intel" height="20"></a>