# CVE-2025-54822 — Fortinet FortiProxy

> As of 2026-01-14, CVE-2025-54822 is a MEDIUM-severity vulnerability in Fortinet FortiProxy, CVSS v3.1 4.2, EPSS 0.3% (22.7th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2025-54822, most recently “Multiple Fortinet FortiOS Vulnerabilities (incl. CVE-2024-23113) Affect Siemens RUGGEDCOM APE1808 via Bundled Fortinet NGFW < V7.4.3 (SSA-832273)”.

**Last updated:** 2026-01-14

## What is CVE-2025-54822?

An improper authorization vulnerability [CWE-285] vulnerability in Fortinet FortiOS 7.4.0 through 7.4.1, FortiOS 7.2.0 through 7.2.8, FortiOS 7.0.0 through 7.0.11, FortiProxy 7.4.0 through 7.4.8, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions, FortiProxy 2.0 all versions allows an authenticated attacker to access static files of others VDOMs via crafted HTTP or HTTPS requests.

The record classifies CVE-2025-54822 under weakness class [CWE-285](https://intel.threadlinqs.com/cwe/CWE-285). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction. 2 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 374 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 4.2 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:F/RL:X/RC:C`)
- **EPSS (FIRST):** 0.3% probability of exploitation in the next 30 days, higher than 22.7% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2025-10-14, last modified 2026-01-14

## Is CVE-2025-54822 being exploited?

Weaponised exploit code for CVE-2025-54822 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 19 in the Threadlinqs vulnerability feed.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2025/CVE-2025-54822.md) (trickest)

## Affected products and versions

- [Fortinet](https://intel.threadlinqs.com/vendors/fortinet): FortiProxy, FortiOS

## How to fix CVE-2025-54822

No vendor patch reference has been recorded for CVE-2025-54822 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2025-54822

1 tracked threat in the Threadlinqs corpus references CVE-2025-54822, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Multiple Fortinet FortiOS Vulnerabilities (incl. CVE-2024-23113) Affect Siemens RUGGEDCOM APE1808 via Bundled Fortinet NGFW < V7.4.3 (SSA-832273)](https://intel.threadlinqs.com/threat/TL-2026-2489) — CRITICAL · 2026-09-13

## Sources

Enriched from CVE.org, FIRST EPSS, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-10.

**Other references**

- [fortiguard.fortinet.com](https://fortiguard.fortinet.com/psirt/FG-IR-25-684)

Canonical: https://intel.threadlinqs.com/cve/CVE-2025-54822
Full detection coverage and IOCs for threats exploiting CVE-2025-54822 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp