CVE-2026-50652 json
Azure Active Directory Denial of Service Vulnerability
published 3mo ago modified yesterday also EUVD-2026-43781
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
Deserialization of untrusted data in Azure Active Directory allows an unauthorized attacker to deny service over a network.
Patch / fix
- Microsoft Azure Active Directory 5.7.1
- Microsoft Microsoft .NET Framework 3.5 2.0.50727.9182 & 3.0.30729.9168
- Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0
- Microsoft Microsoft .NET Framework 3.5 AND 4.8 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0
- Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0
- Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 4.7.4143.0
- Microsoft Microsoft .NET Framework 4.8 4.8.4803.0
- Microsoft Microsoft .NET Framework 4.8.1 4.8.9340.0
Is CVE-2026-50652 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3mo ago
Exploit prediction
1.73% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | 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 |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Microsoft Azure Active Directory
- Microsoft Microsoft .NET Framework 3.5
- Microsoft Microsoft .NET Framework 3.5 AND 4.7.2
- Microsoft Microsoft .NET Framework 3.5 AND 4.8
- Microsoft Microsoft .NET Framework 3.5 AND 4.8.1
- Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
- Microsoft Microsoft .NET Framework 4.8
- Microsoft Microsoft .NET Framework 4.8.1
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-50652
vendor-advisory, patch
Sources
- CVE List CVE-2026-50652
- NVD CVE-2026-50652
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.