# CVE-2025-4998: H3C Magic R200G HTTP POST Request aspForm EditWlanMacList denial of service

> Remote attackers can cause a denial of service on H3C Magic R200G routers by manipulating parameters in HTTP POST requests to the aspForm handler.

- **Severity:** High 7.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **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:** 20 May 2025
- **Updated:** 21 May 2025
- **Also known as:** GHSA-vqmr-vxc7-5wc4

## What is CVE-2025-4998?

CVE-2025-4998 is a high-severity denial of service vulnerability in H3C Magic R200G, published on 20 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability has been found in H3C Magic R200G up to 100R002 and classified as problematic. Affected by this vulnerability is the function Edit_BasicSSID/Edit_BasicSSID_5G/SetAPWifiorLedInfoById/SetMobileAPInfoById/Asp_SetTimingtimeWifiAndLed/AddMacList/EditMacList/AddWlanMacList/EditWlanMacList of the file /goform/aspForm of the component HTTP POST Request Handler. The manipulation of the argument param leads to denial of service. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-404 (Improper Resource Shutdown or Release)

## Which versions are affected by CVE-2025-4998?


## How do I fix CVE-2025-4998?

No fix has been published for CVE-2025-4998 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-4998 being exploited?

There is no known exploitation of CVE-2025-4998 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-4998 and fix it if it is affected.

What it is: CVE-2025-4998 is a high-severity denial of service vulnerability in H3C Magic R200G, published on 20 May 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-2025-4998 in the wild and no public exploit code.

Affected product: H3C Magic R200G. 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-2025-4998/ (Markdown: https://insights.sbomify.com/CVE-2025-4998/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-4998
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-4998
- OSV: https://osv.dev/vulnerability/CVE-2025-4998

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-4998/
Summaries are generated and may contain mistakes; the official description above is the record.