CVE-2025-6091Network attack vector

Command execution via oversized aspForm parameter

Published Jun 15, 2025 · Updated Jun 16, 2025

Buffer overflow in H3C Mini GR-3000AX V100R007L50 allows remote authenticated users to execute commands through a crafted param field. The UpdateWanParamsMulti and UpdateIpv6Params handlers in /routing/goform/aspForm copy the attacker-controlled field without enforcing its destination buffer size. Low-privilege access to the router management interface is required; successful exploitation can crash the router or execute commands.

CVSS severity8.8
High
EPSS probability0.65%
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 V100R007L50 allows remote authenticated users to execute commands through a crafted param field. The UpdateWanParamsMulti and UpdateIpv6Params handlers in /routing/goform/aspForm copy the attacker-controlled field without enforcing its destination buffer size. Low-privilege access to the router management interface is required; successful exploitation can crash the router or execute commands.

The record

CVE
CVE-2025-6091
Published
Jun 15, 2025
Updated
Jun 16, 2025
Vendor
New H3C Technologies Co., Ltd.
Product
H3C Mini GR-3000AX
Classifications
CWE-120, CWE-119
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 16, 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=V100R007L50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

New H3C Technologies Co., Ltd. · H3C Mini GR-3000AXversion=V100R007L50

Published CVSS scores

8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.4VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
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

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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