SSRF in Microsoft Active Directory Federation Services

CVE-2018-16794

Microsoft ADFS 4.0 Windows Server 2016 and previous (Active Directory Federation Services) has an SSRF vulnerability via the txtBoxEmail parameter in /adfs/ls.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.080 (94.6th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2018-16794: held from 0.080 to 0.080.

EPSS over last 30 days · oldest: 0.080 · newest: 0.080 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-16794?
CVE-2018-16794 is a high-severity vulnerability in Microsoft Active Directory Federation Services, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2018-09-18.
How severe is CVE-2018-16794?
High severity. CVSS v3 base score is 8.6 out of 10.
Is CVE-2018-16794 known to be exploited?
6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.