CVE-2021-24015
An improper neutralization of special elements used in an OS Command vulnerability in the administrative interface of FortiMail before 6.4.4 may allow an authenticated attacker to execute unauthorized commands via specifically crafted HTTP requests.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An improper neutralization of special elements used in an OS Command vulnerability in the administrative interface of FortiMail before 6.4.4 may allow an authenticated attacker to execute unauthorized commands via specifically crafted HTTP requests.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.16% probability · 67th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- fortinet/fortimail
- Source
- psirt@fortinet.com
EPSS 1.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://fortiguard.com/advisory/FG-IR-21-021Vendor Advisory
- https://fortiguard.com/advisory/FG-IR-21-021Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.