Critical severity · published Mar 23, 2026
CVE-2026-4567
Tenda A15 UploadCfg stack-based overflow
9.8
CVSS
3.8%
EPSS
No
On KEV
Description
A vulnerability has been found in Tenda A15 15.13.07.13. The impacted element is the function UploadCfg of the file /cgi-bin/UploadCfg. The manipulation of the argument File leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.8% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A1
A15 · Tenda
15.13.07.13 · source: vendor
AF
A15 Firmware · Tenda
15.13.07.13 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4567
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4567
Issue Tracking
https://github.com/942384053/cve/issues/3
Exploit
https://github.com/user-attachments/files/25824036/Tenda.A15.V15.13.07.13.Unauthenticated.Stack-based.Buffer.Overflow.in._cgi-bin_UploadCfg.zip
Permissions Required
https://vuldb.com/?ctiid.352404
Third Party Advisory
https://vuldb.com/?id.352404
Third Party Advisory
https://vuldb.com/?submit.775156
Product
https://www.tenda.com.cn/
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