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Full vulnerability report · 2026
CVE-2026-32178High confidence

.NET Spoofing Vulnerability

Microsoft · .NET 10.0

7.5HighCVSS 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.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 2.09% 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, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

9 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 · communitydotnet10-runtimeVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.10.0.6-r0Alpine Security Database ↗Source updated 11 Sep 2026
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.8.0.26-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.9.0.15-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.8.0.26-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.9.0.15-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.21v3.21 · communitydotnet8-runtimeVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.8.0.26-r0Alpine Security Database ↗Source updated 19 Aug 2026
Alpine v3.21v3.21 · communitydotnet9-runtimeVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.9.0.15-r0Alpine Security Database ↗Source updated 19 Aug 2026
Ubuntu 24.04 LTSnoble · standard archivedotnet10Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.10.0.106-10.0.6-0ubuntu1~24.04.1Canonical Ubuntu Security ↗Source updated 5 Oct 2026
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.8.0.126-8.0.26-0ubuntu1~24.04.1Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Open-source package ranges72 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.NetCore.App.Runtime.linux-armECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-armECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-armECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-arm64ECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-arm64ECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-arm64ECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-armECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-armECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-armECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-arm64ECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-arm64ECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-arm64ECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-x64ECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-x64ECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-x64ECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-x64ECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-x64ECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-x64ECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.osx-arm64ECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.osx-arm64ECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.osx-arm64ECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.osx-x64ECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.osx-x64ECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.osx-x64ECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-armECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-armECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-armECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-arm64ECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-arm64ECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-arm64ECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-x64ECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-x64ECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-x64ECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-x86ECOSYSTEM: introduced 10.0.0; fixed 10.0.610.0.6OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-x86ECOSYSTEM: introduced 9.0.0; fixed 9.0.159.0.15OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-x86ECOSYSTEM: introduced 8.0.0; fixed 8.0.268.0.26OSV record ↗aggregator derived · 10 Sep 2026
nugetMicrosoft.NetCore.App.Runtime.linux-arm>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-arm>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-arm>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-arm64>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-arm64>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-arm64>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-arm>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-arm>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-arm>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-arm64>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-arm64>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-arm64>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-x64>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-x64>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-x64>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-x64>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-x64>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.linux-x64>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.osx-arm64>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.osx-arm64>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.osx-arm64>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.osx-x64>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.osx-x64>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.osx-x64>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-arm>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-arm>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-arm>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-arm64>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-arm64>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-arm64>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-x64>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-x64>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-x64>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-x86>= 10.0.0, <= 10.0.510.0.6GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-x86>= 9.0.0, <= 9.0.149.0.15GitHub advisory ↗upstream repository advisory · 14 Apr 2026
nugetMicrosoft.NetCore.App.Runtime.win-x86>= 8.0.0, <= 8.0.258.0.26GitHub advisory ↗upstream repository advisory · 14 Apr 2026
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-2026-22562

No EUVD known-exploited evidence

Improper neutralization of special elements in .NET allows an unauthorized attacker to perform spoofing 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
7.5 · 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

A flaw was found in the .NET runtime (System.Net.Mail) in how email address data is parsed. Improper neutralization of special characters, specifically carriage return and line feed (CR/LF) sequences, may allow specially crafted email address input to be interpreted incorrectly. An attacker could exploit this issue to perform email spoofing by injecting additional headers or altering how the email address is processed during SMTP operations

What

A flaw was found in the .NET runtime (System.Net.Mail) in how email address data is parsed. Improper neutralization of special characters, specifically carriage return and line feed (CR/LF) sequences, may allow specially crafted email address input to be interpreted incorrectly. An attacker could exploit this issue to perform email spoofing by injecting additional headers or altering how the email address is processed during SMTP operations

Why

The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as control elements or syntactic markers when they are sent to a downstream component.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

A flaw was found in the .NET runtime (System.Net.Mail) in how email address data is parsed. Improper neutralization of special characters, specifically carriage return and line feed (CR/LF) sequences, may allow specially crafted email address input to be interpreted incorrectly. An attacker could exploit this issue to perform email spoofing by injecting additional headers or altering how the email address is processed during SMTP operations

Why

The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as control elements or syntactic markers when they are sent to a downstream component.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

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 → Improper Neutralization of Special Elements → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
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-138 ↗

CWE-138: Improper Neutralization of Special Elements. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as control elements or syntactic markers when they are sent to a downstream component.

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:N/S:U/C:H/I:N/A:N/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.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.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
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.
NetworkUnauthenticatedCWE-138
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-22562Official EUVD mapping

Improper neutralization of special elements in .NET allows an unauthorized attacker to perform spoofing over a network.

Official EUVD record ↗
BSI · German · WID-SEC-2026-1100Microsoft DeveloperTools: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Microsoft Visual Studio, Microsoft .NET Framework, Microsoft .NET, Microsoft PowerShell und Microsoft Visual Studio Code ausnutzen, um vertrauliche Informationen offenzulegen, Spoofing-Angriffe durchzuführen, einen Denial-of-Service-Zustand herbeizuführen oder Sicherheitsmaßnahmen zu umgehen, was möglicherweise die Ausführung von beliebigem Code ermöglicht.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260415Security Bulletin 15 April 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 15 April 2026, published on 15 April 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0796Multiples vulnérabilités dans Tenable Identity Exposure

d?id=CVE-2026-28388 Référence CVE CVE-2026-28389 https://www.cve.org/CVERecord?id=CVE-2026-28389 Référence CVE CVE-2026-28390 https://www.cve.org/CVERecord?id=CVE-2026-28390 Référence CVE CVE-2026-31789 https://www.cve.org/CVERecord?id=CVE-2026-31789 Référence CVE CVE-2026-31790 https://www.cve.org/CVERecord?id=CVE-2026-31790 Référence CVE CVE-2026-32167 https://www.cve.org/CVERecord?id=CVE-2026-32167 Référence CVE CVE-2026-32175 https://www.cve.org/CVERecord?id=CVE-2026-32175 Référence CVE CVE-2026-32176 https://www.cve.org/CVERecord?id=CVE-2026-32176 Référence CVE CVE-2026-32177 https://www.cve.org/CVERecord?id=CVE-2026-32177 Référence CVE CVE-2026-32178 https://www.cve.org/CVERecord?id=CVE-2026-32178 Référence CVE CVE-2026-32203 https://www.cve.org/CVERecord?id=CVE-2026-32203 Référence CVE CVE-2026-33116 https://www.cve.org/CVERecord?id=CVE-2026-33116 Référence CVE CVE-2026-33120 https://www.cve.org/CVERecord?id=CVE-2026-33120 Référence CVE CVE-2026-34180 https://www.cve.org/CVERecord?id=CVE-2026-34180 Référence CVE CVE-2026-34181 https://www.cve.org/CVERecord?id=CVE-2026-34181 Référence CVE CVE-2026-34182 https://www.cve.org/CVERecord?id=CVE-2026-34182 Référence CVE CVE-2026-34183 https://www.cve.org/CVERecord?id=CVE-2026-34183 Référence CVE CVE-2026-35188 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0443Multiples vulnérabilités dans Microsoft .Net

De multiples vulnérabilités ont été découvertes dans Microsoft .Net. Elles permettent à un attaquant de provoquer un déni de service à distance et un contournement de la politique de sécurité.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0445Multiples vulnérabilités dans les produits Microsoft

De multiples vulnérabilités ont été découvertes dans les produits Microsoft. 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. Microsoft indique que la vulnérabilité CVE-2026-32201 est activement exploitée.

Official advisory ↗
CSIRT Italia · Italian · aggiornamenti-mensili-microsoft-19Aggiornamenti Mensili Microsoft

a - Presente CVE-2026-32201 : apre una nuova finestra - - CVE-2026-32200 : apre una nuova finestra - - CVE-2026-32199 : apre una nuova finestra - - CVE-2026-32198 : apre una nuova finestra - - CVE-2026-32197 : apre una nuova finestra - - CVE-2026-32196 : apre una nuova finestra Presente - CVE-2026-32195 : apre una nuova finestra - - CVE-2026-32192 : apre una nuova finestra - - CVE-2026-32190 : apre una nuova finestra - - CVE-2026-32189 : apre una nuova finestra - - CVE-2026-32188 : apre una nuova finestra - - CVE-2026-32184 : apre una nuova finestra - - CVE-2026-32183 : apre una nuova finestra - - CVE-2026-32181 : apre una nuova finestra - - CVE-2026-32178 : apre una nuova finestra - - CVE-2026-32176 : apre una nuova finestra - - CVE-2026-32171 : apre una nuova finestra - - CVE-2026-32168 : apre una nuova finestra - - CVE-2026-32167 : apre una nuova finestra - - CVE-2026-32165 : apre una nuova finestra - - CVE-2026-32164 : apre una nuova finestra - - CVE-2026-32163 : apre una nuova finestra - - CVE-2026-32162 : apre una nuova finestra - - CVE-2026-32160 : apre una nuova finestra - - CVE-2026-32159 : apre una nuova finestra - - CVE-2026-32158 : apre una nuova finestra - - CVE-2026-32157 : apre una nuova finestra - - CVE-2026-32156 : apre una nuova finestra - - CVE-2026-32155 : apre una nuova fi

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-014798マイクロソフトの.NET等の複数製品における特殊要素の無害化に関する脆弱性

.NETにおける特殊要素の不適切な無害化により、認可されていない攻撃者がネットワーク上でなりすましを行うことが可能になります。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6760MS 4월 보안 위협에 따른 정기 보안 업데이트 권고

| Windows User Interface Core Elevation of Privilege Vulnerability | | Windows 사용자 인터페이스 코 | CVE-2026-32164 | Windows User Interface Core Elevation of Privilege Vulnerability | | Windows 사용자 인터페이스 코 | CVE-2026-32165 | Windows User Interface Core Elevation of Privilege Vulnerability | | SQL Server | CVE-2026-32167 | SQL Server Elevation of Privilege Vulnerability | | Azure Monitor 에이전트 | CVE-2026-32168 | Azure Monitor Agent Elevation of Privilege Vulnerability | | Azure Logic Apps | CVE-2026-32171 | Azure Logic Apps Elevation of Privilege Vulnerability | | SQL Server | CVE-2026-32176 | SQL Server Elevation of Privilege Vulnerability | | .그물 | CVE-2026-32178 | .NET Spoofing Vulnerability | | 마이크로소프트 윈도우 | CVE-2026-32181 | Microsoft Windows Denial of Service Vulnerability | | Windows 캡처 도구 | CVE-2026-32183 | Windows Snipping Tool Remote Code Execution Vulnerability | | Microsoft 복합형 컴퓨팅(HPC) 팩 | CVE-2026-32184 | Microsoft High Performance Compute Pack (HPC) Elevation of Privilege Vulnerability | | 마이크로소프트 오피스 엑셀 | CVE-2026-32188 | Microsoft Office Excel Information Disclosure Vulnerability | | 마이크로소프트 오피스 엑셀 | CVE-2026-32189 | Microsoft Office Excel Remote Code Execution Vulnerability | | 마이크로소프트 오피스 | CVE-2026-32190 | Microsoft Office Remote Code Execution Vulnerability | | Azure Monitor 에이전트 |

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0114Kwetsbaarheden verholpen in Microsoft Developer tools

Een kwaadwillende kan de kwetsbaarheden misbruiken om aanvallen uit te voeren die kunnen leiden tot de volgende categorieën schade: - Denial-of-Service (DoS) - Toegang tot gevoelige gegevens - Omzeilen van een beveiligingsmaatregel - Spoofing ``` .NET, .NET Framework, Visual Studio: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-33116 | 7,50 | Denial-of-Service | |----------------|------|-------------------------------------| Microsoft PowerShell: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-26143 | 7,80 | Omzeilen van beveiligingsmaatregel | |----------------|------|-------------------------------------| GitHub Copilot and Visual Studio Code: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-23653 | 5,70 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| .NET and Visual Studio: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-32203 | 7,50 | Denial-of-Service | |----------------|------|-------------------------------------| .NET Framework: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-32226 | 5,90 | Denial-of-Service | | CVE-2026-23666 | 7,50 | Denial-of-Service | |----------------|------|-------------------------------------| .NET: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-32178 | 7,50 | Voordoen als andere gebruiker | | CVE-2026-26171 | 7,50 | Denial-of-Service | |----------------|------|-------------------------------------| ```

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
RHSA-2026:13281: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
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 14 Apr 2026 · Last source change 25 Sept 2026, 17:25 UTC · CWE-138 · Improper Neutralization of Special Elements

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-2026-22562
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
NVD statusNVD modified after enrichment

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: added remediation: msrc.microsoft.com/CVE-2026-32178; removed remediation: acn.gov.it/aggiornamenti-mensili-microsoft-19.
    Before
    remediation: acn.gov.it/aggiornamenti-mensili-microsoft-19 · vendor advisory: msrc.microsoft.com/CVE-2026-32178
    After
    remediation: msrc.microsoft.com/CVE-2026-32178 · vendor advisory: msrc.microsoft.com/CVE-2026-32178
    secure@microsoft.com ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    10.0.0 < 10.0.6; 8.0 < 8.0.26; 8.0.0 < 8.0.26; 9.0.0 < 9.0.15; 17.12.0 < 17.12.19; 17.14.0 < 17.14.30 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    .NET 10.0: 10.0.0 < 10.0.6; .NET 8.0: 8.0 < 8.0.26, 8.0.0 < 8.0.26; .NET 9.0: 9.0.0 < 9.0.15; Microsoft Visual Studio 2022 version 17.12: 17.12.0 < 17.12.19; Microsoft Visual Studio 2022 version 17.14: 17.14.0 < 17.14.30 · Fixed: RHSA-2026:13281: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
    CNA ↗
  3. Remediation statusRemediation status changed from Mitigation available to Patch available.
    Before
    Mitigation available
    After
    Patch available
    secure@microsoft.com ↗
  4. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    CSIRT Italia ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-22562↗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-2026-32178 · cve.blacktree.nl