Insufficient session expiration in Fortinet FortiDeceptor
Priority LOW 39CWE-613Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- 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-613.
Summary
An insufficient session expiration vulnerability in FortiDeceptor 3.0.0 and below allows an attacker to reuse the unexpired admin user session IDs to gain admin privileges, should the attacker be able to obtain that session ID via other, hypothetical attacks.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01054 64th 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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-6644
- 2026-10-03 Alias added: GHSA-g45q-mxhw-4vfh
References
More Fortinet Fortideceptor vulnerabilities
- TI-2020-17523 OS command injection in Fortinet FortiDeceptor CVSS 3.1HIGH 8.8
- TI-2022-10502 Improper privilege management in Fortinet FortiDeceptor CVSS 3.1HIGH 8.8
- TI-2022-18000 Cross-site scripting in Fortinet FortiDeceptor CVSS 3.1HIGH 8.0
- TI-2022-12537 Path traversal in Fortinet FortiDeceptor CVSS 3.1HIGH 8.1
- TI-2022-12540 Missing brute-force protection in Fortinet FortiSandbox CVSS 3.1HIGH 7.5
- TI-2026-20771 An improper neutralization of argument delimiters in a command ('argument injection')… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2020-6644 · CVE Program
- CVE-2020-6644 · NVD
- FIRST EPSS
- GHSA-g45q-mxhw-4vfh · GitHub Advisory Database · CC BY 4.0
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