6.5med
CVE-2018-8340
A security feature bypass vulnerability exists when Active Directory Federation Services (AD FS) improperly handles multi-factor authentica…
Published 8 y ago · modified 4 mo ago · JSON
CVSS
6.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
7.9%
percentile 95%
Public exploits
0
none known
Summary
A security feature bypass vulnerability exists when Active Directory Federation Services (AD FS) improperly handles multi-factor authentication requests, aka "AD FS Security Feature Bypass Vulnerability." This affects Windows Server 2016, Windows Server 2012 R2, Windows 10 Servers.
Exploit prediction (EPSS)
7.89% probability of exploitation in the next 30 days, higher than 95% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Affected products
- Microsoft Windows Server 2016
- Microsoft Windows Server 2012 R2
- Microsoft Windows 10 Servers
References
- securitytracker.com /id/1041474 · vdb-entry, x_refsource_SECTRACK, x_transferred
- securityfocus.com /bid/105029 · vdb-entry, x_refsource_BID, x_transferred
- portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2018-8340 · x_refsource_CONFIRM, x_transferred
Sources
- CVE List: CVE-2018-8340
- NVD: CVE-2018-8340
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.