CVE-2026-2908

Tenda HG9 Loopback Detection Configuration Endpoint formLoopBack stack-based overflow

HIGH
8.8
CVSS Score
Published: February 22, 2026 at 02:02 AM UTC
Updated: June 17, 2026 at 10:32 AM UTC
1 product affected across 1 vendorHG9 Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 0.6%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

tenda-hg9 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.347217
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.347217
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.755202
ExploitIssue TrackingMitigationThird Party Advisory
Source: cverecord
https://github.com/QIU-DIE/cve-nneeww/issues/10
Product
Source: cverecord
https://www.tenda.com.cn/

SSVC — Action Prioritization

SSVCPoCAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-121CWE-119

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