CVE-2026-2908 - Tenda HG9 Loopback Detection Configuration Endpoint formLoopBack stack-based overflow

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HIGH

Tenda HG9 Loopback Detection Configuration Endpoint formLoopBack stack-based overflow

Published Feb 22, 2026

8.7

HIGH

CVSS 4.0

EPSS 1.03%

Description

A security vulnerability has been detected in Tenda HG9 300001138. Affected by this issue is some unknown functionality of the file /boaform/formLoopBack of the component Loopback Detection Configuration Endpoint. Such manipulation of the argument Ethtype leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.

Affected products

Vendor Tenda Product HG9 Default
n/a
- Version
  300001138
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Tenda

HG9

n/a

Version	Status	Constraints
300001138	affected	-

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-119

Buffer Overflow

CWE-121

References (6)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-7540
Advisory
https://github.com/QIU-DIE/cve-nneeww/issues/10
exploitissue-trackingIssue TrackingMitigationThird Party Advisory
https://vuldb.com/?ctiid.347217
signaturepermissions-requiredPermissions RequiredVDB Entry
https://vuldb.com/?id.347217
vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
https://vuldb.com/?submit.755202
third-party-advisoryThird Party AdvisoryVDB Entry
https://www.tenda.com.cn/
product

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-7540		Advisory
https://github.com/QIU-DIE/cve-nneeww/issues/10		exploitissue-trackingIssue TrackingMitigationThird Party Advisory
https://vuldb.com/?ctiid.347217		signaturepermissions-requiredPermissions RequiredVDB Entry
https://vuldb.com/?id.347217		vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
https://vuldb.com/?submit.755202		third-party-advisoryThird Party AdvisoryVDB Entry
https://www.tenda.com.cn/		product