An instance of small space of random values in the RPC API of FortiSandbox before 4.0.0…
Priority LOW 34CWE-330Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An instance of small space of random values in the RPC API of FortiSandbox before 4.0.0 may allow an attacker in possession of a few information pieces about the state of the device to possibly predict valid session IDs.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00814 57th 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
- Partial
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-2021-26098
- 2026-10-03 Alias added: GHSA-6g87-jg5m-ppfq
References
More Fortinet Fortisandbox vulnerabilities
- TI-2026-28691 OS command injection in Fortinet FortiSandbox KEVCVSS 3.1CRITICAL 9.1
- TI-2026-20264 OS command injection in Fortinet FortiSandbox KEVCVSS 3.1CRITICAL 9.1
- TI-2024-15689 Path traversal in Fortinet FortiSandbox CVSS 3.1HIGH 8.1
- TI-2026-28696 Path traversal in Fortinet FortiSandbox CVSS 3.1CRITICAL 9.1
- TI-2024-18399 Cross-site scripting in Fortinet FortiSandbox CVSS 3.1CRITICAL 9.0
- TI-2025-33814 OS command injection in Fortinet FortiSandbox CVSS 3.1HIGH 8.8
Sources
- CVE-2021-26098 · CVE Program
- CVE-2021-26098 · NVD
- FIRST EPSS
- GHSA-6g87-jg5m-ppfq · GitHub Advisory Database · CC BY 4.0
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