CVE-2021-22129: fortinet fortimail Classic Buffer Overflow

Vulnerability summary

CVE-2021-22129 is a high (CVSS 8.8) Classic Buffer Overflow vulnerability in fortinet fortimail. EPSS estimates a 1.09% chance of exploitation in the next 30 days, higher than 65% of scored vulnerabilities.

Timeline

1. 09-07-2021
   PublishedVulnerability first disclosed.
2. 25-10-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.