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CVE-2026-2871

Tenda A21 SetIpMacBind fromSetIpMacBind stack-based overflow

HIGH
8.8
CVSS Score
Published: February 21, 2026 at 03:32 PM UTC
Updated: June 17, 2026 at 10:31 AM UTC
2 products affected across 1 vendorA21 FirmwareA21

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Severity
HIGH8.8
Exploit prediction
EPSS 0.8%
SSVC
PoC

Description

A weakness has been identified in Tenda A21 1.0.0.0. This affects the function fromSetIpMacBind of the file /goform/SetIpMacBind. This manipulation of the argument list causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

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 (6)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/?id.347108
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/?ctiid.347108
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.754631
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/?submit.754630
ExploitIssue TrackingMitigationThird Party Advisory
Source: cverecord
https://github.com/QIU-DIE/cve-nneeww/issues/2
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

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