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.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
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
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.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-4998 being exploited?
There is no known exploitation of CVE-2025-4998 in the wild and no public exploit code.
Sources
Also known as GHSA-vqmr-vxc7-5wc4.