CVE-2019-17657
An Uncontrolled Resource Consumption vulnerability in Fortinet FortiSwitch below 3.6.11, 6.0.6 and 6.2.2, FortiAnalyzer below 6.2.3, FortiManager below 6.2.3 and FortiAP-S/W2 below 6.2.2 may allow an attacker to cause admin webUI denial of service (DoS) via handling special crafted HTTP requests/responses in pieces slowly, as demonstrated by Slow HTTP DoS Attacks.
Key facts
- CVSS score
- 7.5 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
- CWE-400
- EPSS score
- 2.4% (84th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2019-7963)
- Published
- April 7, 2020
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2019-7963 in the EU Vulnerability Database. Last updated in EUVD on October 25, 2024.
View on the EU Vulnerability DatabaseAffected products
- fortinet / fortianalyzer
- fortinet / fortiap-s
- fortinet / fortiap-w2
- fortinet / fortimanager
- fortinet / fortiswitch
Certified products that may be affected
3 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- FortiAnalyzer™ Centralized Reporting Appliances running Firmware 5.2.4 - Fortinet, Inc. - Common Criteria 383-4-360 - archived
- FortiManager Appliances running Firmware 5.2.4 - Fortinet, Inc. - Common Criteria 383-4-359 - archived
- FortiAnalyzer - Fortinet, Inc. - FIPS 140 1406 - historical
References
- https://fortiguard.com/psirt/FG-IR-19-013(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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