HIGH
Tenda A21 SetOnlineDevName set_device_name stack-based overflow
Published Feb 21, 2026
8.7
HIGHCVSS 4.0
EPSS 1.03%
Description
A weakness has been identified in Tenda A21 1.0.0.0. This affects the function set_device_name of the file /goform/SetOnlineDevName. This manipulation of the argument devName causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.
Affected products
-
Affected
- 1.0.0.0
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| Tenda | n/a | unknown | Affected
|
AND
- 1.0.0.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (2)
References (6)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-7525 Advisory
- https://github.com/QIU-DIE/cve-nneeww/issues/6 exploitissue-trackingIssue TrackingMitigationThird Party Advisory
- https://vuldb.com/?ctiid.347180 signaturepermissions-requiredPermissions RequiredVDB Entry
- https://vuldb.com/?id.347180 vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
- https://vuldb.com/?submit.754640 third-party-advisoryThird Party AdvisoryVDB Entry
- https://www.tenda.com.cn/ product
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-7525 | Advisory | |
| https://github.com/QIU-DIE/cve-nneeww/issues/6 | exploitissue-trackingIssue TrackingMitigationThird Party Advisory | |
| https://vuldb.com/?ctiid.347180 | signaturepermissions-requiredPermissions RequiredVDB Entry | |
| https://vuldb.com/?id.347180 | vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry | |
| https://vuldb.com/?submit.754640 | third-party-advisoryThird Party AdvisoryVDB Entry | |
| https://www.tenda.com.cn/ | product |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner VulDB
Published Feb 21, 2026
Updated Feb 23, 2026
Reserved Feb 20, 2026
Link CVE-2026-2886
CISA Vulnrichment
Updated Feb 23, 2026
Red Hat
No data
GitHub
No data