vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-2874

Tenda A21 fast_setting_wifi_set form_fast_setting_wifi_set stack-based overflow

HIGH
8.8
CVSS Score
Published: February 21, 2026 at 05:32 PM UTC
Updated: June 17, 2026 at 10:31 AM UTC
2 products affected across 1 vendorA21 FirmwareA21

Using A21 by Tenda?

Get instant alerts when new vulnerabilities affect A21 - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH8.8
Exploit prediction
EPSS 0.6%
SSVC
PoC

Description

A flaw has been found in Tenda A21 1.0.0.0. Impacted is the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set. Executing a manipulation of the argument ssid can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.

Affected

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

Remediation

No guide yet

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

Patch and advisory references

References (5)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.347111
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.347111
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.754636
ExploitIssue TrackingMitigationThird Party Advisory
Source: cverecord
https://github.com/QIU-DIE/cve-nneeww/issues/5
Product
Source: cverecord
https://www.tenda.com.cn/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal 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

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card