Critical severity · published Mar 1, 2026
CVE-2026-3400
Tenda AC15 TextEditingConversion stack-based overflow
9.8
CVSS
1%
EPSS
No
On KEV
Description
A security flaw has been discovered in Tenda AC15 up to 15.13.07.13. Affected by this issue is some unknown functionality of the file /goform/TextEditingConversion. The manipulation of the argument wpapsk_crypto2_4g results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.
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)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
AC15 · Tenda
15.13.07.0; 15.13.07.1; 15.13.07.2; 15.13.07.3; 15.13.07.4; 15.13.07.5; +8 more · source: vendor
AF
Ac15 Firmware · Tenda
through 15.13.07.13 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3400
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3400
Permissions Required
https://vuldb.com/?ctiid.348295
Third Party Advisory
https://vuldb.com/?id.348295
Third Party Advisory
https://vuldb.com/?submit.760109
Product
https://www.tenda.com.cn/
Exploit
https://www.yuque.com/ba1ma0-an29k/nnxoap/tzg68iadbmqx6esm?singleDoc#
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