Vulnerability Intelligence Report
CVE-2021-36173
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.
No Active Exploit Signals
CVSS Base Score
8.0
HIGH
Exploitability:2.1
Impact Score:5.9
Temporal Score:7.3
EPSS Probability:1.44%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
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Weaponization
—
SSVC Action
—
Affected Products & Versions
| Vendor | Product | Affected 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 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
1.440%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Fortinet, Inc. · Vendor · USA |
| Reserved | 2021-07-06T00:00:00 |
| Published | 2021-12-08T18:42:56 |
| Last Updated | 2024-10-25T13:38:38 |
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