CVE-2025-6091 H3C GR-3000AX aspForm UpdateIpv6Params buffer overflow
Remote attackers can trigger a buffer overflow in the H3C GR-3000AX router's IPv6 parameter update function, potentially leading to code execution or service disruption.
- 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-2025-6091?
CVE-2025-6091 is a high-severity memory corruption vulnerability in H3C GR-3000AX, published on 15 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in H3C GR-3000AX V100R007L50. It has been classified as critical. Affected is the function UpdateWanParamsMulti/UpdateIpv6Params of the file /routing/goform/aspForm. The manipulation of the argument param leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor confirms the existence of this issue. Because they assess the risk as low, they do not have immediate plans for remediation.
Which versions are affected by CVE-2025-6091?
How do I fix CVE-2025-6091?
No fix has been published for CVE-2025-6091 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-2025-6091 being exploited?
There is no known exploitation of CVE-2025-6091 in the wild and no public exploit code.
Sources
Also known as GHSA-v4wc-mc48-2rwm.