CVE-2025-3854

Authenticated device compromise via oversized aspForm parameter

Published Apr 22, 2025 · Updated Apr 22, 2025

Buffer overflow in H3C Mini GR-3000AX V100R006 allows remote authenticated users to compromise the router from an adjacent network. The /goform/aspForm handler processes an oversized param value in several configuration functions without adequate bounds checking. Access requires low-privilege authentication and network adjacency, and successful exploitation can yield total control of the device.

CVSS severity8.6
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in H3C Mini GR-3000AX V100R006 allows remote authenticated users to compromise the router from an adjacent network. The /goform/aspForm handler processes an oversized param value in several configuration functions without adequate bounds checking. Access requires low-privilege authentication and network adjacency, and successful exploitation can yield total control of the device.

The record

CVE
CVE-2025-3854
Published
Apr 22, 2025
Updated
Apr 22, 2025
Vendor
New H3C Technologies Co., Ltd.
Product
H3C Mini GR-3000AX
Classifications
CWE-120, CWE-119, T1210
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=V100R006

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

New H3C Technologies Co., Ltd. · H3C Mini GR-3000AXversion=V100R006

Published CVSS scores

7.7VulDBAV:A/AC:L/Au:S/C:C/I:C/A:C
8.0VulDBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.6VulDBCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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