CVE-2025-3854 H3C GR-3000AX HTTP POST Request aspForm Edit_List_SSID buffer overflow
A buffer overflow in the HTTP POST handler allows local attackers to execute arbitrary code on H3C GR-3000AX routers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-3854?
CVE-2025-3854 is a high-severity memory corruption vulnerability in H3C GR-3000AX, published on 22 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability, which was classified as critical, was found in H3C GR-3000AX up to V100R006. Affected is the function EnableIpv6/UpdateWanModeMulti/UpdateIpv6Params/EditWlanMacList/Edit_List_SSID of the file /goform/aspForm of the component HTTP POST Request Handler. The manipulation of the argument param leads to buffer overflow. The attack needs to be initiated within the local network. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component. Other functions might be affected as well.
Which versions are affected by CVE-2025-3854?
How do I fix CVE-2025-3854?
No fix has been published for CVE-2025-3854 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-3854 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3854 exists.
Sources
Also known as GHSA-ph7f-wjp5-4mjj.