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Full vulnerability report · 2025
CVE-2025-30399High confidence

.NET and Visual Studio Remote Code Execution Vulnerability

Microsoft · .NET 8.0

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivedotnet8Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.8.0.117-8.0.17-0ubuntu1~24.04.1Canonical record ↗Source updated 11 Sept 2026
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2025-18115

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

Untrusted search path in .NET and Visual Studio allows an unauthorized attacker to execute code over a network.

What

Untrusted search path in .NET and Visual Studio allows an unauthorized attacker to execute code over a network.

Why

The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

What

Untrusted search path in .NET and Visual Studio allows an unauthorized attacker to execute code over a network.

Why

The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control.

How

An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may execute code or commands in the affected security context.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Untrusted Search Path → execute code or commands in the affected security context
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-426 ↗

CWE-426: Untrusted Search Path. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkUnauthenticatedRemote code executionCWE-426
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2025-1274Microsoft Developer Tools: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Microsoft Visual Studio 2022, Microsoft WIndows SDK und Microsoft .NET Framework ausnutzen, um beliebigen Programmcode auszuführen, und um seine Privilegien zu erhöhen.

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0751Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-21588 Référence CVE CVE-2025-22868 https://www.cve.org/CVERecord?id=CVE-2025-22868 Référence CVE CVE-2025-22874 https://www.cve.org/CVERecord?id=CVE-2025-22874 Référence CVE CVE-2025-23048 https://www.cve.org/CVERecord?id=CVE-2025-23048 Référence CVE CVE-2025-23165 https://www.cve.org/CVERecord?id=CVE-2025-23165 Référence CVE CVE-2025-23166 https://www.cve.org/CVERecord?id=CVE-2025-23166 Référence CVE CVE-2025-23167 https://www.cve.org/CVERecord?id=CVE-2025-23167 Référence CVE CVE-2025-27209 https://www.cve.org/CVERecord?id=CVE-2025-27209 Référence CVE CVE-2025-30204 https://www.cve.org/CVERecord?id=CVE-2025-30204 Référence CVE CVE-2025-30399 https://www.cve.org/CVERecord?id=CVE-2025-30399 Référence CVE CVE-2025-30681 https://www.cve.org/CVERecord?id=CVE-2025-30681 Référence CVE CVE-2025-30682 https://www.cve.org/CVERecord?id=CVE-2025-30682 Référence CVE CVE-2025-30683 https://www.cve.org/CVERecord?id=CVE-2025-30683 Référence CVE CVE-2025-30684 https://www.cve.org/CVERecord?id=CVE-2025-30684 Référence CVE CVE-2025-30685 https://www.cve.org/CVERecord?id=CVE-2025-30685 Référence CVE CVE-2025-30687 https://www.cve.org/CVERecord?id=CVE-2025-30687 Référence CVE CVE-2025-30688 https://www.cve.org/CVERecord?id=CVE-2025-30688 Référence CVE CVE-2025-30689 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0621Multiples vulnérabilités dans les produits Tenable

De multiples vulnérabilités ont été découvertes dans Tenable Identity Exposure. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une atteinte à l'intégrité des données.

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0501Multiples vulnérabilités dans les produits Microsoft

De multiples vulnérabilités ont été découvertes dans les produits Microsoft. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un contournement de la politique de sécurité.

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0500Vulnérabilité dans Microsoft .Net

Une vulnérabilité a été découverte dans Microsoft .Net. Elle permet à un attaquant de provoquer une exécution de code arbitraire à distance.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2025-008712マイクロソフトの複数の Microsoft 製品におけるリモートでコードを実行される脆弱性

マイクロソフトの .NET、Microsoft Visual Studio、PowerShell には、リモートでコードを実行される脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6528MS 7월 보안 위협에 따른 정기 보안 업데이트 권고

E-2025-46835 Git 파일 덮어쓰기 취약성 | | Visual Studio | CVE-2025-46334 | MITRE: CVE-2025-46334 Git 악성 셸 취약성 | | AMD L1 Data Queue | CVE-2025-36357 | AMD: CVE-2025-36357 L1 데이터 큐에서 일시적 스케줄러 공격 | | AMD Store Queue | CVE-2025-36350 | AMD: CVE-2024-36350 스토어 큐에서 일시적 스케줄러 공격 | | App Control for Business (WDAC) | CVE-2025-33069 | Windows Business용 앱 컨트롤 보안 기능 바이패스 취약성 | | Remote Desktop Client | CVE-2025-33054 | 원격 데스크톱 스푸핑 취약성 | | Internet Shortcut Files | CVE-2025-33053 | 인터넷 바로가기 파일 원격 코드 실행 취약성 | | Visual Studio Code | CVE-2025-32726 | Visual Studio Code 권한 상승 취약성 | | M365 Copilot | CVE-2025-32711 | M365 Copilot 정보 공개 취약성 | | .NET and Visual Studio | CVE-2025-30399 | .NET 및 Visual Studio 원격 코드 실행 취약성 | | Visual Studio | CVE-2025-27614 | MITRE: CVE-2025-27614 Gitk 임의 코드 실행 취약성 | | Visual Studio | CVE-2025-27613 | MITRE: CVE-2025-27613 Gitk 인수 취약성 | | Microsoft Defender for Endpoint | CVE-2025-26684 | Microsoft Defender 권한 상승 취약성 | | Windows Kernel | CVE-2025-26636 | Windows 커널 정보 유출 취약성 | | Visual Studio Code | CVE-2025-21264 | Visual Studio Code 보안 기능 바이패스 취약성 | | Service Fabric | CVE-2025-21195 | Azure Service Fabric 런타임 권한 상승 취약성 | | Azure Stack | CVE-2024-49060 | Azure Stack HCI 권한 상승 취약성 | | SQL Server | CVE-2024-49000 | SQL Server Native Client 원격 코드 실행 취약성 | | Microsoft Defender for Endpoint | CV

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6499MS 6월 보안 위협에 따른 정기 보안 업데이트 권고

-2025-32716 | Windows Media 권한 상승 취약성 | | Remote Desktop Client | CVE-2025-32715 | 원격 데스크톱 프로토콜 클라이언트 정보 유출 취약성 | | Windows Installer | CVE-2025-32714 | Windows Installer 권한 상승 취약성 | | Windows Common Log File System Driver | CVE-2025-32713 | Windows 공용 로그 파일 시스템 드라이버 권한 상승 취약성 | | Windows Win32K - GRFX | CVE-2025-32712 | Win32k 권한 상승 취약성 | | Windows Remote Desktop Services | CVE-2025-32710 | Windows 원격 데스크톱 서비스 원격 코드 실행 취약성 | | Windows Ancillary Function Driver for WinSock | CVE-2025-32709 | WinSock용 Windows 보조 기능 드라이버 권한 상승 취약성 | | Windows Secure Boot | CVE-2025-3052 | Cert CC: CVE-2025-3052 InsydeH2O 보안 부팅 바이패스 | | .NET and Visual Studio | CVE-2025-30399 | .NET 및 Visual Studio 원격 코드 실행 취약성 | | Remote Desktop Gateway Service | CVE-2025-30394 | Windows RD 게이트웨이(원격 데스크톱 게이트웨이) 서비스 거부 취약성 | | Microsoft Office Excel | CVE-2025-30381 | Microsoft Excel 원격 코드 실행 취약성 | | Microsoft Office Excel | CVE-2025-30376 | Microsoft Excel 원격 코드 실행 취약성 | | Microsoft PC Manager | CVE-2025-29975 | Microsoft PC Manager 권한 상승 취약성 | | Web Threat Defense (WTD.sys) | CVE-2025-29971 | Web Threat Defense(WTD.sys) 서비스 거부 취약성 | | Windows Cryptographic Services | CVE-2025-29828 | Windows Schannel 원격 코드 실행 취약성 | | .NET, Visual Studio, and Build Tools for Visual Studio | CVE-2025-26646 | .NET, Visual Studio, 및 Build Tools for

Official advisory ↗
NCSC-NL · Dutch · NCSC-2025-0190Kwetsbaarheden verholpen in Microsoft Developer Tools

Een kwaadwillende kan de kwetsbaarheden misbruiken om willekeurige code uit te voeren met rechten van het slachtoffer. Omdat niet uit te sluiten is dat ontwikkelaars met verhoogde rechten werken, is het aannemelijk dat uitvoer van willekeurige code met verhoogde rechten kan plaatsvinden. Voor succesvol misbruik moet de kwaadwillende het slachtoffer misleiden malafide code te importeren en uitvoeren. ``` Visual Studio: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2025-47959 | 7.10 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Windows SDK: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2025-47962 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| .NET and Visual Studio: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2025-30399 | 7.50 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| ```

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 13 Jun 2025 · Last source change 20 Feb 2026, 16:00 UTC · CWE-426 · Untrusted Search Path

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2025-18115
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2025-18115↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2025-30399 · cve.blacktree.nl