CVE-2026-50304: CWE-121: Stack-based Buffer Overflow in Microsoft Microsoft .NET Framework 3.5 AND 4.7.2
Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over a network.
AI Analysis
Technical Summary
This vulnerability is a stack-based buffer overflow (CWE-121) affecting Active Directory Federation Services in Microsoft .NET Framework versions 3.5 through 4.7.2. It enables an unauthenticated attacker to remotely cause a denial of service condition. The CVSS v3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
Exploitation of this vulnerability results in denial of service, impacting the availability of Active Directory Federation Services on affected .NET Framework versions. There is no confidentiality or integrity impact reported. No known exploits are currently observed in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50304 to remediate this vulnerability.
CVE-2026-50304: CWE-121: Stack-based Buffer Overflow in Microsoft Microsoft .NET Framework 3.5 AND 4.7.2
Description
Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over a network.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a stack-based buffer overflow (CWE-121) affecting Active Directory Federation Services in Microsoft .NET Framework versions 3.5 through 4.7.2. It enables an unauthenticated attacker to remotely cause a denial of service condition. The CVSS v3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
Exploitation of this vulnerability results in denial of service, impacting the availability of Active Directory Federation Services on affected .NET Framework versions. There is no confidentiality or integrity impact reported. No known exploits are currently observed in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50304 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T17:30:16.975Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50304","vendor":"Microsoft"}]
Threat ID: 6a56768d68715ace43f08c04
Added to database: 07/14/2026, 17:49:01 UTC
Last enriched: 08/13/2026, 14:30:08 UTC
Last updated: 08/26/2026, 22:52:11 UTC
Views: 73
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