Published severityHigh→Operational priority:High, unchanged from published severity.unchanged
Evidence used
No CISA KEV confirmation is currently recorded.
EPSS is 0.91% for the current model date.
Compensating controls
Validate the affected product branch and deploy the verified fixed release.
Restrict the affected network interface to trusted sources where business-safe.
Monitor vendor guidance and exploitation sources for a material change.
Verification
Confirm that the asset runs Microsoft .NET 10.0 and falls inside the recorded affected range.
Verify the installed build against the product-specific fixed version after deployment.
Validate exposure, authentication requirements and compensating controls in the actual environment.
Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Distribution package intelligence
Release-specific package status
Alpine findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
4 package states
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.
Distribution release
Source package
Vendor state
Fixed version
Evidence
Alpine v3.23v3.23 · community
dotnet8-runtime
Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.
These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
1 current
msrc_CVE-2026-69522 · CSAF 2.0 · revision 3 · finalMicrosoft Security Response Center.NET and Visual Studio Remote Code Execution Vulnerability
13 known affected
The vendor explicitly identifies these products as affected by this CVE.
Microsoft Visual Studio 2026 version 18.9 <18.9.3
.NET 11.0 installed on Windows <11.0 RC1
.NET 10.0 installed on Windows <10.0.12
Microsoft Visual Studio 2022 version 17.14 <17.14.40
.NET 9.0 installed on Windows <9.0.20
.NET 8.0 installed on Windows <8.0.31
Microsoft .NET Framework 3.5 AND 4.8.1 <2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0
Microsoft .NET Framework 4.8.1 <4.8.9347.0
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 <4.7.4145.0
Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 <2.0.50727.8984 & 3.0.30729.8980 & 4.7.4145.0
Microsoft .NET Framework 3.5 AND 4.7.2 <2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0
Microsoft .NET Framework 3.5 AND 4.8 <2.0.50727.9183 & 3.0.30729.9169 & 4.8.4806.0
National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.
Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.
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-2026-73170
No EUVD known-exploited evidence
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
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
8.8 · CVSS 3.1
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
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
What
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Why
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Why
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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 → Heap-based Buffer Overflow → 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
Low: no specialised conditions are recorded
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-122: Heap-based Buffer Overflow. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
CVSS vector ?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
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.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.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.
Only matched European and national findings are included. Language selectors and unavailable sources are omitted.
ENISA EUVD · EUVD-2026-73170Official EUVD mapping
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Official EUVD record ↗BSI · German · WID-SEC-2026-3242Microsoft Entwicklerwerkzeuge: Mehrere Schwachstellen ermöglichen Privilegieneskalation
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in verschiedenen Microsoft Entwicklerwerkzeugen ausnutzen, um seine Privilegien zu erhöhen, um Sicherheitsmechanismen zu umgehen, sowie Informationen zu manipulieren oder offenzulegen.
Official advisory ↗CERT-FR · French · CERTFR-2026-AVI-1146Multiples vulnérabilités dans Microsoft .Net
De multiples vulnérabilités ont été découvertes dans Microsoft .Net. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
Official advisory ↗CERT-FR · French · CERTFR-2026-AVI-1149Multiples vulnérabilités dans les produits Microsoft
septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69378 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69380 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69382 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69402 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69409 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69417 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69439 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69464 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69465 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69522 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69559 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69562 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69615 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69636 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69641 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69642 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69646 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69649 du 08 septembre 2026
Bulletin de sécurité Microsoft CVE-2026-69683 du 08 septembre 2026
Bulletin de sécurité Micr
Official advisory ↗CSIRT Italia · Italian · aggiornamenti-mensili-microsoft-24Aggiornamenti Mensili Microsoft
nuova finestra
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CVE-2026-69532 : apre una nuova finestra
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CVE-2026-69416 : apre una nuova finestra
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CVE-2026-69417 : apre una nuova finestra
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CVE-2026-69538 : apre una nuova finestra
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CVE-2026-69535 : apre una nuova finestra
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CVE-2026-69415 : apre una nuova finestra
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CVE-2026-69536 : apre una nuova finestra
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CVE-2026-69530 : apre una nuova finestra
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CVE-2026-69409 : apre una nuova finestra
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CVE-2026-69407 : apre una nuova finestra
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CVE-2026-69528 : apre una nuova finestra
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CVE-2026-69408 : apre una nuova finestra
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CVE-2026-69529 : apre una nuova finestra
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CVE-2026-69401 : apre una nuova finestra
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CVE-2026-69522 : apre una nuova finestra
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CVE-2026-69402 : apre una nuova finestra
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CVE-2026-69405 : apre una nuova finestra
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CVE-2026-69406 : apre una nuova finestra
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CVE-2026-69527 : apre una nuova finestra
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CVE-2026-69403 : apre una nuova finestra
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CVE-2026-69524 : apre una nuova finestra
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CVE-2026-69404 : apre una nuova finestra
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CVE-2026-69525 : apre una nuova finestra
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CVE-2026-69441 : apre una nuova finestra
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CVE-2026-69562 : apre una nuova finestra
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CVE-2026-69442 : apre una nuova finestra
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CVE-2026-69563 : apre una nuova finestra
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CVE-2026-69560 : apre una nuova finestra
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CVE-2026-69440 : apre una nuova fi
Official advisory ↗KISA KrCERT/CC · Korean · KNVD-6946MS 9월 보안 위협에 따른 정기 보안 업데이트 권고
ows DHCP Server Remote Code Execution Vulnerability |
| Microsoft Windows Media Foundation | CVE-2026-69511 | Windows 미디어 파운데이션 원격 코드 실행 취약성 |
| Windows Spaceport.sys | CVE-2026-69512 | Windows Spaceport.sys 권한 상승 취약성 |
| Windows Error Reporting | CVE-2026-69513 | Windows 오류 보고 권한 상승 취약성 |
| Windows Remote Desktop Services | CVE-2026-69514 | 원격 데스크톱 서비스 원격 코드 실행 취약성 |
| Connected Devices Platform Service (Cdpsvc) | CVE-2026-69516 | 연결된 디바이스 플랫폼 서비스(Cdpsvc) 권한 상승 취약성 |
| Windows Wireless Networking | CVE-2026-69517 | Windows 무선 네트워킹 권한 상승 취약성 |
| Windows Remote Desktop | CVE-2026-69518 | Windows Remote Desktop 원격 코드 실행 취약성 |
| Visual Studio | CVE-2026-69522 | .NET 및 Visual Studio 원격 코드 실행 취약성 |
| Active Directory Domain Services | CVE-2026-69524 | Windows Active Directory 도메인 서비스 원격 코드 실행 취약성 |
| Windows Remote Desktop Services | CVE-2026-69525 | 원격 데스크톱 서비스 원격 코드 실행 취약성 |
| Windows USB Mass Storage Class Driver | CVE-2026-69527 | Windows USB 대용량 스토리지 클래스 드라이버 정보 공개 취약성 |
| Windows Shell | CVE-2026-69528 | Windows Shell 권한 상승 취약성 |
| Microsoft Office Access | CVE-2026-69529 | Microsoft Office Access 원격 코드 실행 취약성 |
| Reliable Multicast Transport Driver (RMCAST) | CVE-2026-69530 | Windows RMCAST(Reliable Multicast Transport Driver) 원격 코드 실행 취약성 |
| Microsoft Windows Speech | CVE-2026-69531 | Micr
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.
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 8 Sept 2026 · Last source change 1 Oct 2026, 22:52 UTC · CWE-122 · Heap-based Buffer Overflow
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 2026-09-09
European sourceENISA EUVD · EUVD-2026-73170
Product sourceVendor CSAF · Microsoft Security Response Center
Remediation sourceVendor CSAF · Microsoft Security Response Center
CWE sourceOther authority
NVD statusNVD enrichment underway
Core structured fields are present and their contributing authorities are shown above.
Affected versionsThe structured affected or fixed version information changed.
Before
Microsoft Visual Studio 2026 version 18.9 <18.9.3; .NET 11.0 installed on Windows <11.0 RC1; .NET 10.0 installed on Windows <10.0.12; Microsoft Visual Studio 2022 version 17.14 <17.14.40; .NET 9.0 installed on Windows <9.0.20; .NET 8.0 installed on Windows <8.0.31; Microsoft .NET Framework 3.5 AND 4.8.1 <2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0; Microsoft .NET Framework 4.8.1 <4.8.9347.0; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 <4.7.4145.0; Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 <2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0; Microsoft .NET Framework 3.5 AND 4.7.2 <2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0; Microsoft .NET Framework 3.5 AND 4.8 <2.0.50727.9183 & 3.0.30729.9169 & 4.8.4806.0; Microsoft .NET Framework 4.8 <4.8.4806.0 · Fixed: Microsoft .NET Framework 4.8 4.8.4806.0; Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9183 & 3.0.30729.9169 & 4.8.4806.0; Microsoft .NET Framework 3.5 AND 4.7.2 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0; Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.4145.0; Microsoft .NET Framework 4.8.1 4.8.9347.0; Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0; .NET 8.0 installed on Windows 8.0.31; .NET 9.0 installed on Windows 9.0.20; Microsoft Visual Studio 2022 version 17.14 17.14.40; .NET 10.0 installed on Windows 10.0.12; .NET 11.0 installed on Windows 11.0 RC1; Microsoft Visual Studio 2026 version 18.9 18.9.3
After
Microsoft Visual Studio 2026 version 18.9 <18.9.3; .NET 11.0 installed on Windows <11.0 RC1; .NET 10.0 installed on Windows <10.0.12; Microsoft Visual Studio 2022 version 17.14 <17.14.40; .NET 9.0 installed on Windows <9.0.20; .NET 8.0 installed on Windows <8.0.31; Microsoft .NET Framework 3.5 AND 4.8.1 <2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0; Microsoft .NET Framework 4.8.1 <4.8.9347.0; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 <4.7.4145.0; Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 <2.0.50727.8984 & 3.0.30729.8980 & 4.7.4145.0; Microsoft .NET Framework 3.5 AND 4.7.2 <2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0; Microsoft .NET Framework 3.5 AND 4.8 <2.0.50727.9183 & 3.0.30729.9169 & 4.8.4806.0; Microsoft .NET Framework 4.8 <4.8.4806.0 · Fixed: Microsoft .NET Framework 4.8 4.8.4806.0; Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9183 & 3.0.30729.9169 & 4.8.4806.0; Microsoft .NET Framework 3.5 AND 4.7.2 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0; Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 2.0.50727.8984 & 3.0.30729.8980 & 4.7.4145.0; Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.4145.0; Microsoft .NET Framework 4.8.1 4.8.9347.0; Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0; .NET 8.0 installed on Windows 8.0.31; .NET 9.0 installed on Windows 9.0.20; Microsoft Visual Studio 2022 version 17.14 17.14.40; .NET 10.0 installed on Windows 10.0.12; .NET 11.0 installed on Windows 11.0 RC1; Microsoft Visual Studio 2026 version 18.9 18.9.3
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.