What is the CVSS score of CVE-2026-2910?

CVE-2026-2910 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Hg9 Firmware are affected by CVE-2026-2910?

A high-severity vulnerability (CVSS 8.8) has been discovered in Tenda HG9 devices that could allow attackers to compromise affected network equipment.

Is there a public PoC exploit available for CVE-2026-2910?

Yes, a public proof-of-concept exploit is available for CVE-2026-2910. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-2910?

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. Within 30 days: Monitor Tenda security advisories for patch availability, prepare upgrade procedures, and consider replacing devices with alternative vendors if patches remain unavailable.

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 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

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

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

DescriptionCVE.org

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. The flaw carries high severity with complete compromise potential across confidentiality, integrity, and availability.

Technical ContextAI

Classified as CWE-119 (Buffer Overflow). Affects Hg9 Firmware. 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.

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.