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Hg9 Firmware CVE-2026-2910

HIGH
Buffer Overflow (CWE-119)
2026-02-22 cna@vuldb.com
Buffer Overflow Stack Overflow Hg9 Firmware
8.8
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:04 vuln.today
PoC Detected
Feb 23, 2026 - 20:21 vuln.today
Public exploit code
CVE Published
Feb 22, 2026 - 04:15 nvd
HIGH 8.8

DescriptionNVD

A flaw has been found in Tenda HG9 300001138. This vulnerability affects unknown code of the file /boaform/formPing6. Executing a manipulation of the argument pingAddr can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used.

AnalysisAI

Stack-based buffer overflow in Tenda HG9 firmware's pingAddr parameter allows unauthenticated remote attackers to achieve code execution through the /boaform/formPing6 endpoint. Public exploit code exists for this vulnerability, and no patch is currently available. …

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RemediationAI

Within 24 hours: Inventory all Tenda HG9 (300001138) devices in your network and isolate affected units from production environments if possible. Within 7 days: Implement network segmentation to restrict administrative access to affected devices, disable remote management features, and deploy WAF/IDS rules to block exploitation attempts against the /boaform/formPing6 endpoint. …

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CVE-2026-2910 vulnerability details – vuln.today
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