Auth bypass in Fortinet Fsso Windows Dc Agent, Ca
CVE-2021-26088
An improper authentication vulnerability in FSSO Collector version 5.0.295 and below may allow an unauthenticated user to bypass a FSSO firewall policy and access the protected network via sending specifically crafted UDP login notification packets.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.010 (62.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Fortinet Fsso Windows Dc Agent, Ca — versions FSSO Windows DC Agent 5.0.295, 5.0.294; FSSO Windows CA 5.0.295, 5.0.294
- Fortinet Single Sign-On
Weakness classification (CWE)
Public proof-of-concept exploits
References
- fortiguard.com/advisory/FG-IR-20-191 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-26088?
- CVE-2021-26088 is a high-severity vulnerability in Fortinet Fsso Windows Dc Agent, Ca, classified under Improper Authentication. CVSS score: 7.1/10. Published 2021-07-12.
- How severe is CVE-2021-26088?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2021-26088 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.