Technology · Microsoft
Microsoft Active Directory Federation Services vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 21 vulnerabilities in Microsoft Active Directory Federation Services: 0 in the last 7 days and 12 in the last 90 days, 2 of them critical and 1 exploited in the wild. The most recent, CVE-2026-97788, was published on 13 October 2026. 11 vulnerabilities in the last four weeks, up from none in the four before. 1 critical against 0.
- Last 7 days
- 0
- Last 90 days
- 12
- Critical, all time
- 2
- Exploited in the wild
- 1
About Microsoft Active Directory Federation Services
Microsoft service for managing identity and access across hybrid and cloud environments.
Latest Microsoft Active Directory Federation Services vulnerabilities
- CVE-2026-97788: Microsoft Active Directory Federation Services information disclosurehighCVSS 7.5EPSS 0.7%
- CVE-2026-96252: Microsoft Active Directory Federation Services cryptographic signature verification bypasscriticalCVSS 9.1EPSS 0.5%
- CVE-2026-85324: Microsoft Active Directory Federation Services memory allocation denial of servicehighCVSS 7.5EPSS 0.8%
- CVE-2026-85319: Microsoft Active Directory Federation Services resource exhaustion denial of servicehighCVSS 7.5EPSS 1.1%
- CVE-2026-83674: Microsoft Active Directory Federation Services weak authenticationhighCVSS 8.1EPSS 0.7%
- CVE-2026-83646: Microsoft Active Directory Federation Services open redirectmediumCVSS 4.8EPSS 0.4%
- CVE-2026-83645: Microsoft Active Directory Federation Services resource exhaustion denial of servicehighCVSS 7.5EPSS 1.3%
- CVE-2026-83511: Microsoft Active Directory Federation Services weak authenticationhighCVSS 7.4EPSS 0.7%
- CVE-2026-70005: Microsoft Active Directory Federation Services weak authentication bypassmediumCVSS 5.9EPSS 0.6%
- CVE-2026-69982: Microsoft Active Directory Federation Services authentication bypassmediumCVSS 5.9EPSS 0.7%
- CVE-2026-103576: Microsoft Active Directory Federation Services open redirectmediumCVSS 6.5EPSS 0.8%
- CVE-2026-72978: Microsoft Active Directory Federation Services resource exhaustion denial of servicemediumCVSS 5.9EPSS 1.0%
- CVE-2026-50647: Microsoft AD FS denial of service via infinite loophighCVSS 7.5
- CVE-2026-50411: Microsoft AD FS stack-based buffer overflow denial of servicehighCVSS 7.5
- CVE-2026-50368: Microsoft Active Directory Federation Services stack overflow denial of servicehighCVSS 7.5
- CVE-2026-50355: Microsoft Active Directory Federation Services stack buffer overflowhighCVSS 7.5
- CVE-2026-50324: Microsoft AD FS infinite loop denial of servicemediumCVSS 5.9
- CVE-2026-50304: Microsoft Active Directory Federation Services stack overflow DoShighCVSS 7.5
- CVE-2026-56155: Microsoft AD FS privilege escalation via insufficient access control granularitycriticalexploited in the wildCVSS 7.8
- CVE-2026-54983: Microsoft AD FS stack-based buffer overflow denial of servicehighCVSS 7.5
- CVE-2026-50695: Microsoft Active Directory Federation Services stack overflow denial of servicehighCVSS 7.5
Most severe Microsoft Active Directory Federation Services vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-56155: Microsoft AD FS privilege escalation via insufficient access control granularitycriticalexploited in the wildCVSS 7.8
- CVE-2026-96252: Microsoft Active Directory Federation Services cryptographic signature verification bypasscriticalCVSS 9.1EPSS 0.5%
- CVE-2026-83674: Microsoft Active Directory Federation Services weak authenticationhighCVSS 8.1EPSS 0.7%
- CVE-2026-83645: Microsoft Active Directory Federation Services resource exhaustion denial of servicehighCVSS 7.5EPSS 1.3%
- CVE-2026-85319: Microsoft Active Directory Federation Services resource exhaustion denial of servicehighCVSS 7.5EPSS 1.1%
- CVE-2026-85324: Microsoft Active Directory Federation Services memory allocation denial of servicehighCVSS 7.5EPSS 0.8%
- CVE-2026-97788: Microsoft Active Directory Federation Services information disclosurehighCVSS 7.5EPSS 0.7%
- CVE-2026-50647: Microsoft AD FS denial of service via infinite loophighCVSS 7.5
- CVE-2026-50411: Microsoft AD FS stack-based buffer overflow denial of servicehighCVSS 7.5
- CVE-2026-50368: Microsoft Active Directory Federation Services stack overflow denial of servicehighCVSS 7.5
Vulnerabilities per week
11 vulnerabilities in the last four weeks, up from none in the four before. 1 critical against 0. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 1 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 11 | 1 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Microsoft Active Directory Federation Services vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/active-directory-federation-services)<a href="https://junglewise.ai/threats/technologies/active-directory-federation-services"><img src="https://junglewise.ai/threats/technologies/active-directory-federation-services/badge.svg" alt="Microsoft Active Directory Federation Services vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/active-directory-federation-services.json, and this page as text at https://junglewise.ai/threats/technologies/active-directory-federation-services.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Microsoft Active Directory Federation Services vulnerabilities", https://junglewise.ai/threats/technologies/active-directory-federation-services, 13 November 2026.