# CVE-2025-59921: Information disclosure in FortiADC

> An authenticated attacker can obtain sensitive data via crafted HTTP or HTTPS requests in Fortinet FortiADC.

- **Severity:** Medium 6.2 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:X/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Oct 2025
- **Updated:** 14 Jan 2026
- **Also known as:** GHSA-957v-4339-m5w7

## What is CVE-2025-59921?

CVE-2025-59921 is a medium-severity vulnerability in Fortinet FortiADC, published on 14 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An exposure of sensitive information to an unauthorized actor vulnerability [CWE-200] in Fortinet FortiADC version 7.4.0, version 7.2.3 and below, version 7.1.4 and below, 7.0 all versions, 6.2 all versions may allow an authenticated attacker to obtain sensitive data via crafted HTTP or HTTPs requests.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2025-59921?

It affects 1 product.


Products: Fortinet Fortiadc.

## How do I fix CVE-2025-59921?

No fix has been published for CVE-2025-59921 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-59921 being exploited?

There is no known exploitation of CVE-2025-59921 in the wild and no public exploit code.

## Other vulnerabilities in Fortinet FortiADC

- [CVE-2018-13374](https://insights.sbomify.com/CVE-2018-13374/): Fortinet FortiOS and FortiADC Improper Access Control (medium 4.3, exploited in the wild)
- [CVE-2022-38374](https://insights.sbomify.com/CVE-2022-38374/): Cross-site scripting in Fortinet FortiADC (high 8.8)
- [CVE-2023-37933](https://insights.sbomify.com/CVE-2023-37933/): Cross-site scripting in FortiADC (high 8.6)
- [CVE-2022-39947](https://insights.sbomify.com/CVE-2022-39947/): Command injection in FortiADC (high 8.6)
- [CVE-2022-35851](https://insights.sbomify.com/CVE-2022-35851/): Cross-site scripting in Fortinet FortiADC (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-59921 and fix it if it is affected.

What it is: CVE-2025-59921 is a medium-severity vulnerability in Fortinet FortiADC, published on 14 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-59921 in the wild and no public exploit code.

Affected product: Fortinet FortiADC. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-59921/ (Markdown: https://insights.sbomify.com/CVE-2025-59921/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-59921
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-59921
- OSV: https://osv.dev/vulnerability/CVE-2025-59921

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-59921/
Summaries are generated and may contain mistakes; the official description above is the record.