Stack-based buffer overflow in Fortinet FortiWeb
Priority LOW 35CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
A stack-based buffer overflow vulnerability [CWE-121] in FortiWeb version 7.0.1 and earlier, 6.4 all versions, version 6.3.19 and earlier may allow a privileged attacker to execute arbitrary code or commands via specifically crafted CLI `execute backup-local rename` and `execute backup-local show` operations.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00941 61st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 | FortiWeb | 7.0.0 – 7.0.1; 6.4.0 – 6.4.2; 6.3.6 – 6.3.19 | — | No fix listed | CNA |
- FortiWeb VendorFortinet Affected 7.0.0 – 7.0.1; 6.4.0 – 6.4.2; 6.3.6 – 6.3.19 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:* | 6.3.6 to before 6.3.20 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiweb:6.4.0:*:*:*:*:*:*:* | 6.4.0 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiweb:6.4.1:*:*:*:*:*:*:* | 6.4.1 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiweb:6.4.2:*:*:*:*:*:*:* | 6.4.2 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiweb:7.0.0:*:*:*:*:*:*:* | 7.0.0 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiweb:7.0.1:*:*:*:*:*:*:* | 7.0.1 | Vulnerable | Fortinet |
- cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:* Versions 6.3.6 to before 6.3.20 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiweb:6.4.0:*:*:*:*:*:*:* Versions 6.4.0 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiweb:6.4.1:*:*:*:*:*:*:* Versions 6.4.1 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiweb:6.4.2:*:*:*:*:*:*:* Versions 6.4.2 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiweb:7.0.0:*:*:*:*:*:*:* Versions 7.0.0 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiweb:7.0.1:*:*:*:*:*:*:* Versions 7.0.1 Vulnerable ·Fortinet
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-33871
- 2026-10-03 Alias added: GHSA-w5f6-wm5p-vwm3
References
More Fortinet Fortiweb vulnerabilities
- TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
- TI-2025-39856 Path traversal in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
- TI-2025-18919 SQL injection in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.8
- TI-2025-35886 OS command injection in Fortinet FortiWeb KEVCVSS 3.1MEDIUM 6.7
- TI-2021-05113 OS command injection in Fortinet FortiWeb CVSS 3.1HIGH 8.8
- TI-2021-18960 Stack-based buffer overflow in Fortinet FortiWeb CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-33871 · CVE Program
- CVE-2022-33871 · NVD
- FIRST EPSS
- GHSA-w5f6-wm5p-vwm3 · GitHub Advisory Database · CC BY 4.0
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