Vulnerability · Published Dec 16, 2021 · Assigned by fortinet

CVE-2021-41028

High 8.2

In plain English

A high-severity security flaw in Fortinet FortiClientEMS, FortiClientWindows, FortiClientLinux, FortiClientMac from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)8.2High

Exploit odds (30 days)0.2%top 86.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A combination of a use of hard-coded cryptographic key vulnerability [CWE-321] in FortiClientEMS 7.0.1 and below, 6.4.6 and below and an improper certificate validation vulnerability [CWE-297] in FortiClientWindows, FortiClientLinux and FortiClientMac 7.0.1 and below, 6.4.6 and below may allow an unauthenticated and network adjacent attacker to perform a man-in-the-middle attack between the EMS and the FCT via the telemetry protocol.

Affected products (as reported)

Vendor	Product	Versions
Fortinet	Fortinet FortiClientEMS, FortiClientWindows, FortiClientLinux, FortiClientMac	FortiClientEMS 7.0.1 and below, 6.4.6 and below, FortiClientWindows, FortiClientLinux, FortiClientMac 7.0.1 and below, 6.4.6 and below.

References

https://fortiguard.com/advisory/FG-IR-21-075 x_refsource_CONFIRM