Uncontrolled resource consumption in Fortinet FortiSwitch
Priority MEDIUM 44CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02445 84th percentileScored 2026-11-07
Fix Fixed Fortinet FortiSwitch: 3.6.11FortiAnalyzer: 6.2.3+2 more products
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Fortinet FortiSwitch | before 3.6.11; 6.0.6 and 6.2.2 | 3.6.11 | Patch available | CNA |
| — | FortiAnalyzer | before 6.2.3 | 6.2.3 | Patch available | CNA |
| — | FortiManager | before 6.2.3 | 6.2.3 | Patch available | CNA |
| — | FortiAP-S/W2 | before 6.2.2 | 6.2.2 | Patch available | CNA |
- Fortinet FortiSwitch Vendor— Affected before 3.6.11; 6.0.6 and 6.2.2 Fixed in 3.6.11 Patch available CNA
- FortiAnalyzer Vendor— Affected before 6.2.3 Fixed in 6.2.3 Patch available CNA
- FortiManager Vendor— Affected before 6.2.3 Fixed in 6.2.3 Patch available CNA
- FortiAP-S/W2 Vendor— Affected before 6.2.2 Fixed in 6.2.2 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fortinet:fortianalyzer:*:*:*:*:*:*:*:* | before 6.2.3 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiap-s:*:*:*:*:*:*:*:* | before 6.2.2 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiap-w2:*:*:*:*:*:*:*:* | before 6.2.2 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortimanager:*:*:*:*:*:*:*:* | before 6.2.3 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortiswitch:*:*:*:*:*:*:*:* | before 3.6.11; 6.0.0 to before 6.0.6; 6.2.0 to before 6.2.2 | Vulnerable | Fortinet |
- cpe:2.3:a:fortinet:fortianalyzer:*:*:*:*:*:*:*:* Versions before 6.2.3 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiap-s:*:*:*:*:*:*:*:* Versions before 6.2.2 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiap-w2:*:*:*:*:*:*:*:* Versions before 6.2.2 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortimanager:*:*:*:*:*:*:*:* Versions before 6.2.3 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortiswitch:*:*:*:*:*:*:*:* Versions before 3.6.11; 6.0.0 to before 6.0.6; 6.2.0 to before 6.2.2 Vulnerable ·Fortinet
Remediation
- Fix · CNA Fortinet FortiSwitch Fixed in 3.6.11
- Fix · CNA FortiAnalyzer Fixed in 6.2.3
- Fix · CNA FortiManager Fixed in 6.2.3
- Fix · CNA FortiAP-S/W2 Fixed in 6.2.2
Timeline
- 2026-10-02 Threatist record created from CVE-2019-17657
- 2026-10-03 Alias added: GHSA-j8g4-vw7x-cwpr
References
More Fortinet Fortianalyzer vulnerabilities
- TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
- TI-2023-10911 A buffer underwrite ('buffer underflow') vulnerability in the administrative interface of… CVSS 3.1CRITICAL 9.3
- TI-2023-23782 Path traversal in Fortinet FortiAnalyzer CVSS 3.1MEDIUM 6.5
- TI-2021-12260 Use after free in Fortinet FortiManager CVSS 3.1CRITICAL 9.8
- TI-2024-33992 Weak authentication in Fortinet FortiAnalyzer CVSS 3.1CRITICAL 9.8
- TI-2024-15684 A client-side enforcement of server-side security in Fortinet FortiAnalyzer-BigData at… CVSS 3.1HIGH 8.8
Sources
- CVE-2019-17657 · CVE Program
- CVE-2019-17657 · NVD
- FIRST EPSS
- GHSA-j8g4-vw7x-cwpr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences