01 Record
CVE-2026-50653
Azure Active Directory Denial of Service Vulnerability
HighPUBLISHEDCNA: microsoft
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
02 Description
Azure Active Directory Denial of Service Vulnerability
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 1.17% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 67.2% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-07-24.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-07-14 17:05Z3 MO AGO
- Last updated
- 2026-10-28 20:02Z20 HR AGO
- Reserved
- 2026-06-05
- Assigning CNA
- microsoft
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
- Weaknesses
- Data version
- 5.2
- Document digest
- 8ba34411d8c192f8b2e0c84a9e922db4ee77f85ea17658e1a669b1f37fa2cf5b
05 Affected products
VendorProductVersionsPlatforms
MicrosoftMicrosoft .NET Framework 3.53.5.0 to < 2.0.50727.9182 & 3.0.30729.9168Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
MicrosoftMicrosoft .NET Framework 3.5 AND 4.7.24.7.0 to < 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2019 (Server Core installation)
MicrosoftMicrosoft .NET Framework 3.5 AND 4.84.8.0 to < 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022 (Server Core installation)
MicrosoftMicrosoft .NET Framework 3.5 AND 4.8.14.8.1 to < 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows Server 2022, Windows Server 2022 (Server Core installation)
MicrosoftMicrosoft .NET Framework 4.6.2/4.7/4.7.1/4.7.24.7.0 to < 4.7.4143.0Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
MicrosoftMicrosoft .NET Framework 4.84.8.0 to < 4.8.4803.0Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation)
MicrosoftMicrosoft .NET Framework 4.8.14.8.0.0 to < 4.8.9340.0Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems
06 References
- msrc.microsoft.comAzure Active Directory Denial of Service Vulnerabilityhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50653