High severity · published Aug 14, 2026
CVE-2026-19789
Tenda AC1206 httpd web management interface WifiGuestSet set_wl_guest_iplist stack-based overflow
8.8
CVSS
0.9%
EPSS
No
On KEV
Description
A vulnerability was determined in Tenda AC1206 15.03.06.23_multi_TD01. This vulnerability affects the function set_wl_guest_iplist of the file /goform/WifiGuestSet of the component httpd web management interface. This manipulation of the argument shareSpeed causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
AC1206 · Tenda
15.03.06.23_multi_TD01 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-19789
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-19789
github.com
https://github.com/lipenghai/iot_bug/blob/main/Tenda/AC12/2.md
vuldb.com
https://vuldb.com/cve/CVE-2026-19789
vuldb.com
https://vuldb.com/submit/868921
vuldb.com
https://vuldb.com/vuln/389756
vuldb.com
https://vuldb.com/vuln/389756/cti
www.tenda.com.cn
https://www.tenda.com.cn/
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