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Full vulnerability report · 2026
CVE-2026-72927High confidence

Winsock Elevation of Privilege Vulnerability

Microsoft · Windows 10 Version 1607

6.7MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Low, lowered one band.downgradedsince 1 Oct 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.24% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Microsoft Windows 10 Version 1607 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: No default targetRemediation target: Normal maintenance

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.

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-2026-73661

No EUVD known-exploited evidence

Heap-based buffer overflow in Winsock allows an authorized attacker to elevate privileges locally.

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
6.7 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

Heap-based buffer overflow in Winsock allows an authorized attacker to elevate privileges locally.

What

Heap-based buffer overflow in Winsock allows an authorized attacker to elevate privileges locally.

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 local access may attempt exploitation with elevated privileges. If successful, the issue may gain additional privileges.

What

Heap-based buffer overflow in Winsock allows an authorized attacker to elevate privileges locally.

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 local access may attempt exploitation with elevated privileges. 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
local access → Heap-based Buffer Overflow → gain additional privileges
Attack surface
Local
Privileges required
High: elevated access is required
User interaction
None
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:L/AC:L/PR:H/UI:N/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.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRHighPrivileges required: The attacker needs elevated or administrative privileges.UINoneUser interaction: No action by another user is required.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
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
Privilege escalationCWE-122
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-73661Official EUVD mapping

Heap-based buffer overflow in Winsock allows an authorized attacker to elevate privileges locally.

Official EUVD record ↗
BSI · German · WID-SEC-2026-3243Microsoft Windows: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in verschiedenen Versionen von Microsoft Windows Server, Microsoft Windows 10 und Microsoft Windows 11 ausnutzen, um seine Privilegien zu erhöhen, um einen Denial of Service herbeizuführen, um Informationen offenzulegen und um beliebigen Code auszuführen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1147Multiples vulnérabilités dans Microsoft Windows

embre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-71345 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-71348 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-71349 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-71350 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-71351 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-71352 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-71353 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-72926 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-72927 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-72928 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-72929 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-72930 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-72931 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-72932 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-72933 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-72935 du 08 septembre 2026 Bulletin de sécurité Microsoft Windows CVE-2026-72936 du 08 septembre 2026 Bulletin de sécurité Microso

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

nuova finestra - - CVE-2026-77487 : apre una nuova finestra - - CVE-2026-77488 : apre una nuova finestra - - CVE-2026-70178 : apre una nuova finestra - - CVE-2026-77489 : apre una nuova finestra - - CVE-2026-77491 : apre una nuova finestra - - CVE-2026-77492 : apre una nuova finestra - - CVE-2026-77493 : apre una nuova finestra - - CVE-2026-77494 : apre una nuova finestra - - CVE-2026-70065 : apre una nuova finestra - - CVE-2026-77495 : apre una nuova finestra - - CVE-2026-77498 : apre una nuova finestra - - CVE-2026-77499 : apre una nuova finestra - - CVE-2026-72929 : apre una nuova finestra - - CVE-2026-72928 : apre una nuova finestra - - CVE-2026-72927 : apre una nuova finestra - - CVE-2026-72926 : apre una nuova finestra - - CVE-2026-70283 : apre una nuova finestra - - CVE-2026-70289 : apre una nuova finestra - - CVE-2026-77480 : apre una nuova finestra - - CVE-2026-77481 : apre una nuova finestra - - CVE-2026-77482 : apre una nuova finestra - - CVE-2026-77483 : apre una nuova finestra - - CVE-2026-69989 : apre una nuova finestra - - CVE-2026-71340 : apre una nuova finestra - - CVE-2026-71342 : apre una nuova finestra - - CVE-2026-71341 : apre una nuova finestra - - CVE-2026-71348 : apre una nuova finestra - - CVE-2026-70019 : apre una nuova finestra - - CVE-2026-71349 : apre una nuova fi

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

6-71349 | Windows Spaceport.sys 원격 코드 실행 취약성 | | Windows Spaceport.sys | CVE-2026-71350 | Windows Spaceport.sys 원격 코드 실행 취약성 | | Windows Routing and Remote Access Service (RRAS) | CVE-2026-71351 | Windows RRAS(라우팅 및 원격 액세스 서비스) 권한 상승 취약성 | | Windows Remote Access Connection Manager | CVE-2026-71352 | Windows Remote Access Connection Manager Remote Code Execution Vulnerability | | Windows Routing and Remote Access Service (RRAS) | CVE-2026-71353 | Windows RRAS(라우팅 및 원격 액세스 서비스) 권한 상승 취약성 | | Windows Internet Connection Sharing (ICS) | CVE-2026-72926 | Windows Internet Connection Sharing (ICS) Elevation of Privilege Vulnerability | | Winsock | CVE-2026-72927 | Winsock Elevation of Privilege Vulnerability | | Windows DNS | CVE-2026-72928 | Windows DNS Server Remote Code Execution Vulnerability | | Windows Installer | CVE-2026-72929 | Windows Installer 권한 상승 취약성 | | Windows Secure Socket Tunneling Protocol (SSTP) | CVE-2026-72930 | Windows SSTP(Secure Socket Tunneling Protocol) 원격 코드 실행 취약성 | | Windows Secure Socket Tunneling Protocol (SSTP) | CVE-2026-72931 | Windows SSTP(Secure Socket Tunneling Protocol) 서비스 거부 취약성 | | Windows Message Queuing Queue Manager | CVE-2026-72932 | Windows Message Queuing Queue Manager Information Disclosure Vulnerability | | Microsoft WDAC OLE DB provider for SQL | CV

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. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 8 Sept 2026 · Last source change 1 Oct 2026, 22:58 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-2026-73661
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 ↗
  1. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24 · vendor advisory: msrc.microsoft.com/CVE-2026-72927
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  2. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    secure@microsoft.com ↗
  3. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24 · vendor advisory: msrc.microsoft.com/CVE-2026-72927
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  4. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    secure@microsoft.com ↗
  5. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24 · vendor advisory: msrc.microsoft.com/CVE-2026-72927
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  6. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    secure@microsoft.com ↗
  7. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24 · vendor advisory: msrc.microsoft.com/CVE-2026-72927
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  8. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    secure@microsoft.com ↗
  9. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24 · vendor advisory: msrc.microsoft.com/CVE-2026-72927
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  10. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    secure@microsoft.com ↗
  11. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24 · vendor advisory: msrc.microsoft.com/CVE-2026-72927
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  12. Affected versionsThe structured affected or fixed version information changed.
    Before
    Windows 10 Version 1607: 10.0.14393.0 < 10.0.14393.9512; Windows 10 Version 1809: 10.0.17763.0 < 10.0.17763.9245; Windows 10 Version 21H2: 10.0.19044.0 < 10.0.19044.7725; Windows 10 Version 22H2: 10.0.19045.0 < 10.0.19045.7725; Windows 11 version 23H2: 10.0.22631.0 < 10.0.22631.7582; Windows 11 Version 23H2: 10.0.22631.0 < 10.0.22631.7582; Windows 11 Version 24H2: 10.0.26100.0 < 10.0.26100.9445; Windows 11 Version 25H2: 10.0.26200.0 < 10.0.26200.9445; Windows 11 version 26H1: 10.0.28000.0 < 10.0.28000.2954; Windows Server 2012: 6.2.9200.0 < 6.2.9200.26349; Windows Server 2012 (Server Core installation): 6.2.9200.0 < 6.2.9200.26349; Windows Server 2012 R2: 6.3.9600.0 < 6.3.9600.23397; Windows Server 2012 R2 (Server Core installation): 6.3.9600.0 < 6.3.9600.23397; Windows Server 2016: 10.0.14393.0 < 10.0.14393.9512; Windows Server 2016 (Server Core installation): 10.0.14393.0 < 10.0.14393.9512; Windows Server 2019: 10.0.17763.0 < 10.0.17763.9245; Windows Server 2019 (Server Core installation): 10.0.17763.0 < 10.0.17763.9245; Windows Server 2022: 10.0.20348.0 < 10.0.20348.5622; Windows Server 2025: 10.0.26100.0 < 10.0.26100.33438; Windows Server 2025 (Server Core installation): 10.0.26100.0 < 10.0.26100.33438 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Windows 10 Version 1607: 10.0.14393.0 < 10.0.14393.9512; Windows 10 Version 1809: 10.0.17763.0 < 10.0.17763.9245; Windows 10 Version 21H2: 10.0.19044.0 < 10.0.19044.7725; Windows 10 Version 22H2: 10.0.19045.0 < 10.0.19045.7725; Windows 11 version 23H2: 10.0.22631.0 < 10.0.22631.7582; Windows 11 Version 23H2: 10.0.22631.0 < 10.0.22631.7582; Windows 11 Version 24H2: 10.0.26100.0 < 10.0.26100.9445; Windows 11 Version 25H2: 10.0.26200.0 < 10.0.26200.9445; Windows 11 version 26H1: 10.0.28000.0 < 10.0.28000.2954; Windows Server 2012: 6.2.9200.0 < 6.2.9200.26349; Windows Server 2012 (Server Core installation): 6.2.9200.0 < 6.2.9200.26349; Windows Server 2012 R2: 6.3.9600.0 < 6.3.9600.23398; Windows Server 2012 R2 (Server Core installation): 6.3.9600.0 < 6.3.9600.23398; Windows Server 2016: 10.0.14393.0 < 10.0.14393.9512; Windows Server 2016 (Server Core installation): 10.0.14393.0 < 10.0.14393.9512; Windows Server 2019: 10.0.17763.0 < 10.0.17763.9245; Windows Server 2019 (Server Core installation): 10.0.17763.0 < 10.0.17763.9245; Windows Server 2022: 10.0.20348.0 < 10.0.20348.5622; Windows Server 2025: 10.0.26100.0 < 10.0.26100.33438; Windows Server 2025 (Server Core installation): 10.0.26100.0 < 10.0.26100.33438 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
  13. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    secure@microsoft.com ↗
  14. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24 · vendor advisory: msrc.microsoft.com/CVE-2026-72927
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  15. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    secure@microsoft.com ↗
  16. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24 · vendor advisory: msrc.microsoft.com/CVE-2026-72927
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  17. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    secure@microsoft.com ↗
  18. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24 · vendor advisory: msrc.microsoft.com/CVE-2026-72927
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  19. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    secure@microsoft.com ↗
  20. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24 · vendor advisory: msrc.microsoft.com/CVE-2026-72927
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  21. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    secure@microsoft.com ↗
  22. Vendor guidanceAuthoritative vendor guidance changed: removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24 · vendor advisory: msrc.microsoft.com/CVE-2026-72927
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  23. Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: msrc.microsoft.com/CVE-2026-72927; removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-24
    After
    vendor advisory: msrc.microsoft.com/CVE-2026-72927
    secure@microsoft.com ↗
  24. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    secure@microsoft.com ↗
  25. 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 ↗
  26. Remediation statusRemediation status changed from Mitigation available to Awaiting fix.
    Before
    Mitigation available
    After
    Awaiting fix
    CNA ↗
  27. Affected versionsThe structured affected or fixed version information changed.
    Before
    10.0.14393.0 < 10.0.14393.9512; 10.0.17763.0 < 10.0.17763.9245; 10.0.19044.0 < 10.0.19044.7725; 10.0.19045.0 < 10.0.19045.7725; 10.0.22631.0 < 10.0.22631.7582; 10.0.26100.0 < 10.0.26100.9445; 10.0.26200.0 < 10.0.26200.9445 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Windows 10 Version 1607: 10.0.14393.0 < 10.0.14393.9512; Windows 10 Version 1809: 10.0.17763.0 < 10.0.17763.9245; Windows 10 Version 21H2: 10.0.19044.0 < 10.0.19044.7725; Windows 10 Version 22H2: 10.0.19045.0 < 10.0.19045.7725; Windows 11 version 23H2: 10.0.22631.0 < 10.0.22631.7582; Windows 11 Version 23H2: 10.0.22631.0 < 10.0.22631.7582; Windows 11 Version 24H2: 10.0.26100.0 < 10.0.26100.9445; Windows 11 Version 25H2: 10.0.26200.0 < 10.0.26200.9445; Windows 11 version 26H1: 10.0.28000.0 < 10.0.28000.2954; Windows Server 2012: 6.2.9200.0 < 6.2.9200.26349; Windows Server 2012 (Server Core installation): 6.2.9200.0 < 6.2.9200.26349; Windows Server 2012 R2: 6.3.9600.0 < 6.3.9600.23397; Windows Server 2012 R2 (Server Core installation): 6.3.9600.0 < 6.3.9600.23397; Windows Server 2016: 10.0.14393.0 < 10.0.14393.9512; Windows Server 2016 (Server Core installation): 10.0.14393.0 < 10.0.14393.9512; Windows Server 2019: 10.0.17763.0 < 10.0.17763.9245; Windows Server 2019 (Server Core installation): 10.0.17763.0 < 10.0.17763.9245; Windows Server 2022: 10.0.20348.0 < 10.0.20348.5622; Windows Server 2025: 10.0.26100.0 < 10.0.26100.33438; Windows Server 2025 (Server Core installation): 10.0.26100.0 < 10.0.26100.33438 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    CNA ↗
  28. ENISA EUVD mappingEUVD-2026-73661 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2026-73661"}
    ENISA EUVD ↗
  29. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    CSIRT Italia ↗
  30. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Remediation guidance recorded
ENISA EUVD · EUVD-2026-73661↗CSIRT Italia remediation guidance↗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-2026-72927 · cve.blacktree.nl