CVE-2021-44168
Published: December 10, 2021
Official Description
Fortinet FortiOS "execute restore src-vis" downloads code without integrity checking, allowing an attacker to arbitrarily download files.
CISA KEV Advisory
Fortinet FortiOS Arbitrary File Download
Fortinet FortiOS "execute restore src-vis" downloads code without integrity checking, allowing an attacker to arbitrarily download files.
Apply updates per vendor instructions.
Risk Analysis
This is a high-severity vulnerability in Fortinet FortiOS where the "execute restore src-vis" command downloads code without integrity checking, allowing an attacker to arbitrarily download files. Despite a low EPSS score of 0.01431, its inclusion in CISA's KEV catalog confirms it has been actively exploited.
This vulnerability has been actively exploited in the wild. The nature of the flaw suggests it could be remotely exploitable if an attacker can interact with the affected command.
Apply the latest security updates for Fortinet FortiOS to address this vulnerability. Review and restrict access to administrative interfaces and commands.
Technical Analysis
CVE-2021-44168 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2021-44168 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-44168 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1