CVE-2026-39813
A path traversal: '../filedir' vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8 may allow attacker to escalation of privilege via specially crafted HTTP requests.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 22.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
A path traversal: '../filedir' vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.5, FortiSandbox 4.4.0 through 4.4.8 may allow attacker to escalation of privilege via specially crafted HTTP requests.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 22.22% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-24
- Affected
- fortinet/fortisandbox
- Source
- psirt@fortinet.com
EPSS moved from 0.7% on 24 September 2026 to 22.2% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://fortiguard.fortinet.com/psirt/FG-IR-26-112Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.