Buffer overflow in Fortinet Fortimail
CVE-2021-22129
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (65.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Fortinet Fortimail
- Fortinet Fortimail — versions FortiMail before 6.4.5
Weakness classification (CWE)
References
- fortiguard.com/advisory/FG-IR-21-023 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-22129?
- CVE-2021-22129 is a high-severity vulnerability in Fortinet Fortimail, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2021-07-09.
- How severe is CVE-2021-22129?
- High severity. CVSS v3 base score is 8.8 out of 10.