CVE-2021-22129

8.8 highEPSS 1.1%

High (8.8) in fortinet fortimail. EPSS 1.1% chance of exploitation in the next 30 days.

Multiple instances of incorrect calculation of buffer size in the Webmail and Administrative interface of FortiMail before 6.4.5 may allow an authenticated attacker with regular webmail access to trigger a buffer overflow and to possibly execute unauthorized code or commands via specifically crafted HTTP requests.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 65% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2021-07-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

fortinet:fortimail

References

https://fortiguard.com/advisory/FG-IR-21-023
https://fortiguard.com/advisory/FG-IR-21-023

Check your stack JSON