CVE-2025-3854: A vulnerability, which was classified as critical, was found in H3C GR-3000AX up to V100R006. Affected is the function EnableIpv6/UpdateWanModeMulti/U...

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.

Metrics

CVSS 3.1

8/10

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

8.6/10

CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.49%

38.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published: Apr 22, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-3854?

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.

How severe is CVE-2025-3854?

CVE-2025-3854 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2025-3854?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.