Vulnerability · Published Dec 8, 2021 · Assigned by fortinet
CVE-2021-36173
High 8.0
In plain English
A high-severity security flaw in Fortinet FortiOS from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 75% of all known vulnerabilities).
Severity (CVSS 3.1)8.0High
Exploit odds (30 days)1.5%top 24.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A heap-based buffer overflow in the firmware signature verification function of FortiOS versions 7.0.1, 7.0.0, 6.4.0 through 6.4.6, 6.2.0 through 6.2.9, and 6.0.0 through 6.0.13 may allow an attacker to execute arbitrary code via specially crafted installation images.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | Fortinet FortiOS | FortiOS 7.0.1, 7.0.0, 6.4.0 through 6.4.6, 6.2.0 through 6.2.9, 6.0.0 through 6.0.13 |
References
- https://fortiguard.com/advisory/FG-IR-21-115 x_refsource_CONFIRM