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Full vulnerability report · 2026
CVE-2026-69439High confidence

.NET and Visual Studio Elevation of Privilege Vulnerability

Microsoft · .NET 10.0

8.8HighCVSS 3.1
Recommended action
Within 7 days

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

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.84% 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

  1. Confirm that the asset runs Microsoft .NET 10.0 and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

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 releaseSource packageVendor stateFixed versionEvidence
Alpine v3.23v3.23 · communitydotnet8-runtimeVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.8.0.31-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.23v3.23 · communitydotnet9-runtimeVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.9.0.20-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.22v3.22 · communitydotnet8-runtimeVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.8.0.31-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.22v3.22 · communitydotnet9-runtimeVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.9.0.20-r0Alpine Security Database ↗Source updated 11 Sep 2026
Open-source package ranges2 source-attributed ranges

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.

Ecosystem and packageAffected rangeFirst fixed versionEvidence
NuGetMicrosoft.DiaSymReader.NativeECOSYSTEM: introduced 17.10.0-beta1.24272.1; fixed 18.9.0-beta1.26405.218.9.0-beta1.26405.2OSV record ↗aggregator derived · 1 Oct 2026
nugetMicrosoft.DiaSymReader.Native>= 17.10.0-beta1.24272.1, <= 18.9.0-beta1.26405.118.9.0-beta1.26405.2GitHub advisory ↗upstream repository advisory · 9 Sep 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

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-2026-69439 · CSAF 2.0 · revision 2 · finalMicrosoft Security Response Center.NET and Visual Studio Elevation of Privilege Vulnerability
6 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
Summary
Microsoft
Remediation
10.0.12:Security Update:https://support.microsoft.com/kb/5126106
Optional official sources

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-2026-73720

No EUVD known-exploited evidence

Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevate privileges 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 .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network.

What

Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevate privileges 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 gain additional privileges.

What

Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevate privileges 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 gain additional privileges.

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 → gain additional privileges
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 ↗

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.
CVSS:3.1/AV:N/AC:L/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.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
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedPrivilege escalationCWE-122
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-73720Official EUVD mapping

Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevate privileges 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-2026-69356 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-69361 du 08 septembre 2026 Bulletin de sécurité Microsoft CVE-2026-69375 du 08 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 Micr

Official advisory ↗
CSIRT Italia · Italian · aggiornamenti-mensili-microsoft-24Aggiornamenti Mensili Microsoft

nuova finestra - - CVE-2026-69562 : apre una nuova finestra - - CVE-2026-69442 : apre una nuova finestra - - CVE-2026-69563 : apre una nuova finestra - - CVE-2026-69560 : apre una nuova finestra - - CVE-2026-69440 : apre una nuova finestra - - CVE-2026-69561 : apre una nuova finestra - - CVE-2026-69434 : apre una nuova finestra - - CVE-2026-69556 : apre una nuova finestra - - CVE-2026-69432 : apre una nuova finestra - - CVE-2026-69553 : apre una nuova finestra - - CVE-2026-69433 : apre una nuova finestra - - CVE-2026-69554 : apre una nuova finestra - - CVE-2026-69438 : apre una nuova finestra - - CVE-2026-69559 : apre una nuova finestra - - CVE-2026-69439 : apre una nuova finestra - - CVE-2026-69436 : apre una nuova finestra - - CVE-2026-69430 : apre una nuova finestra - - CVE-2026-69551 : apre una nuova finestra - - CVE-2026-69431 : apre una nuova finestra - - CVE-2026-69552 : apre una nuova finestra - - CVE-2026-69429 : apre una nuova finestra - - CVE-2026-69423 : apre una nuova finestra - - CVE-2026-69544 : apre una nuova finestra - - CVE-2026-69424 : apre una nuova finestra - - CVE-2026-69421 : apre una nuova finestra - - CVE-2026-69542 : apre una nuova finestra - - CVE-2026-69422 : apre una nuova finestra - - CVE-2026-69427 : apre una nuova finestra - - CVE-2026-69548 : apre una nuova fi

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-036075マイクロソフトの.NET等の複数製品におけるヒープベースのバッファオーバーフローの脆弱性

.NETおよびVisual Studioにおけるヒープベースのバッファオーバーフローにより、不正な攻撃者がネットワーク経由で権限を昇格させることが可能です。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6946MS 9월 보안 위협에 따른 정기 보안 업데이트 권고

tocol(LDAP) 서비스 거부 취약성 | | Windows IKE Extension | CVE-2026-69429 | Windows IKE(Internet Key Exchange) 프로토콜 확장 원격 코드 실행 취약성 | | Windows Embedded Mode Service | CVE-2026-69430 | Windows 포함 모드 서비스 권한 상승 취약성 | | Telnet Client | CVE-2026-69431 | 텔넷 클라이언트 원격 코드 실행 취약성 | | Volume Manager Driver | CVE-2026-69432 | 볼륨 관리자 드라이버 권한 상승 취약성 | | Windows Error Reporting | CVE-2026-69433 | Windows 오류 보고 권한 상승 취약성 | | Windows URL Moniker | CVE-2026-69434 | Windows URL Moniker 원격 코드 실행 취약성 | | Windows Error Reporting | CVE-2026-69436 | Windows 오류 보고 권한 상승 취약성 | | Microsoft JScript | CVE-2026-69438 | Microsoft JScript 원격 코드 실행 취약성 | | .NET and Visual Studio | CVE-2026-69439 | .NET 및 Visual Studio 권한 상승 취약성 | | Windows MIDI Service Module | CVE-2026-69440 | Windows MIDI 서비스 모듈 권한 상승 취약성 | | Windows Installer | CVE-2026-69441 | Windows Installer 권한 상승 취약성 | | Microsoft Office | CVE-2026-69442 | Microsoft Office 원격 코드 실행 취약성 | | Windows Device Health Attestation (DHA) | CVE-2026-69443 | Windows Device Health Attestation (DHA) 정보 유출 취약성 | | Microsoft Windows Speech | CVE-2026-69444 | Microsoft Windows 음성 권한 상승 취약성 | | Windows Compressed Folder | CVE-2026-69445 | Windows 압축 폴더 권한 상승 취약성 | | Windows Audio Service | CVE-2026-69447 | Windows 오디오 서비스 권한 상승 취약성 | | Windows Bluetooth Service | CVE-2026-69448 | Windows Blu

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
Action
10.0.12:Security Update:https://support.microsoft.com/kb/5126106
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 8 Sept 2026 · Last source change 1 Oct 2026, 22:59 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-2026-73720
Product sourceVendor CSAF · Microsoft Security Response Center
Remediation sourceVendor CSAF · Microsoft Security Response Center
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 ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · Fixed: 10.0.12:Security Update:https://support.microsoft.com/kb/5126106
    After
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · 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.
    CNA ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · Fixed: 10.0.12:Security Update:https://support.microsoft.com/kb/5126106
    After
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · 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.
    CNA ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · Fixed: 10.0.12:Security Update:https://support.microsoft.com/kb/5126106
    After
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · 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.
    CNA ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · Fixed: 10.0.12:Security Update:https://support.microsoft.com/kb/5126106
    After
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · 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.
    CNA ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · Fixed: 10.0.12:Security Update:https://support.microsoft.com/kb/5126106
    After
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · 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.
    CNA ↗
  6. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24
    After
    no authoritative guidance recorded
    CNA ↗
  7. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    CNA ↗
  8. Affected versionsThe structured affected or fixed version information changed.
    Before
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · 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.
    After
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · Fixed: 10.0.12:Security Update:https://support.microsoft.com/kb/5126106
    Microsoft Security Response Center ↗
  9. Affected versionsThe structured affected or fixed version information changed.
    Before
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · Fixed: 10.0.12:Security Update:https://support.microsoft.com/kb/5126106
    Microsoft Security Response Center ↗
  10. Remediation statusRemediation status changed from Mitigation available to Patch available.
    Before
    Mitigation available
    After
    Patch available
    Microsoft Security Response Center ↗
  11. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24
    After
    no authoritative guidance recorded
    CNA ↗
  12. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    CNA ↗
  13. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24
    After
    no authoritative guidance recorded
    CNA ↗
  14. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    CNA ↗
  15. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24
    After
    no authoritative guidance recorded
    CNA ↗
  16. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    CNA ↗
  17. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24
    After
    no authoritative guidance recorded
    CNA ↗
  18. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    CNA ↗
  19. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24
    After
    no authoritative guidance recorded
    CNA ↗
  20. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    CNA ↗
  21. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24
    After
    no authoritative guidance recorded
    CNA ↗
  22. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    CNA ↗
  23. Affected versionsThe structured affected or fixed version information changed.
    Before
    10.0.0 < 10.0.12; 11.0.0 < 11.0 RC1; 8.0.0 < 8.0.31; 9.0.0 < 9.0.20; 17.14.0 < 17.14.40; 18.9.0 < 18.9.3 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    .NET 10.0: 10.0.0 < 10.0.12; .NET 11.0: 11.0.0 < 11.0 RC1; .NET 8.0: 8.0.0 < 8.0.31; .NET 9.0: 9.0.0 < 9.0.20; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.40; Microsoft Visual Studio 2026 version 18.9: 18.9.0 < 18.9.3 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
  24. ENISA EUVD mappingEUVD-2026-73720 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-73720"}
    ENISA EUVD ↗
  25. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    CSIRT Italia ↗
  26. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2026-73720↗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-2026-69439 · cve.blacktree.nl