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Microsoft Security Advisory CVE-2026-32178 – .NET Spoofing Vulnerability

🗓️ 14 Apr 2026 23:27:52Reported by GitHub Advisory DatabaseType 
github
 github🔗 github.com👁 6 Views

Microsoft notes a spoofing vulnerability in .NET via System.Net.Mail; patch to latest releases.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-32178
14 Apr 202616:57
–attackerkb
Tenable Nessus		Amazon Linux 2023 : aspnetcore-runtime-10.0, aspnetcore-runtime-dbg-10.0, aspnetcore-targeting-pack-10.0 (ALAS2023-2026-1627)
30 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : aspnetcore-runtime-9.0, aspnetcore-runtime-dbg-9.0, aspnetcore-targeting-pack-9.0 (ALAS2023-2026-1628)
30 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : aspnetcore-runtime-8.0, aspnetcore-runtime-dbg-8.0, aspnetcore-targeting-pack-8.0 (ALAS2023-2026-1629)
30 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : .NET 8.0 (ALSA-2026:8468)
20 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 9 : .NET 8.0 (ALSA-2026:8469)
17 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 10 : .NET 8.0 (ALSA-2026:8470)
21 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 10 : .NET 9.0 (ALSA-2026:8472)
21 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : .NET 10.0 (ALSA-2026:8473)
20 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : .NET 9.0 (ALSA-2026:8475)
20 Apr 202600:00
–nessus
Rows per page
Vulners
Node
microsoftnetcore.app.runtime.win-x86Range8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.win-x64Range8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.win-arm64Range8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.win-armRange8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.osx-x64Range8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.osx-arm64Range8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.linux-x64Range8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.linux-musl-x64Range8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.linux-musl-arm64Range8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.linux-musl-armRange8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.linux-arm64Range8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.linux-armRange8.0.0–8.0.25nuget
OR
microsoftnetcore.app.runtime.win-x86Range9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.win-x64Range9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.win-arm64Range9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.win-armRange9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.osx-x64Range9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.osx-arm64Range9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.linux-x64Range9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.linux-musl-x64Range9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.linux-musl-arm64Range9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.linux-musl-armRange9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.linux-arm64Range9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.linux-armRange9.0.0–9.0.14nuget
OR
microsoftnetcore.app.runtime.win-x86Range10.0.0–10.0.5nuget
OR
microsoftnetcore.app.runtime.win-x64Range10.0.0–10.0.5nuget
OR
microsoftnetcore.app.runtime.win-arm64Range10.0.0–10.0.5nuget
OR
microsoftnetcore.app.runtime.win-armRange10.0.0–10.0.5nuget
OR
microsoftnetcore.app.runtime.osx-x64Range10.0.0–10.0.5nuget
OR
microsoftnetcore.app.runtime.osx-arm64Range10.0.0–10.0.5nuget
OR
microsoftnetcore.app.runtime.linux-x64Range10.0.0–10.0.5nuget
OR
microsoftnetcore.app.runtime.linux-musl-arm64Range10.0.0–10.0.5nuget
OR
microsoftnetcore.app.runtime.linux-musl-x64Range10.0.0–10.0.5nuget
OR
microsoftnetcore.app.runtime.linux-arm64Range10.0.0–10.0.5nuget
OR
microsoftnetcore.app.runtime.linux-musl-armRange10.0.0–10.0.5nuget
OR
microsoftnetcore.app.runtime.linux-armRange10.0.0–10.0.5nuget

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14 Apr 2026 23:27Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.17.5
EPSS0.00057
SSVC
CWE-138
spoofing vulnerabilitysystem net mailpatched releases
6