Description
A security vulnerability has been detected in Tenda AC21 and AC23 16.03.08.16. Affected is the function GetParentControlInfo of the file /goform/GetParentControlInfo. Such manipulation of the argument mac leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
Affected products
tenda: ac21 firmware; tenda: ac21; tenda: ac23 firmware; tenda: ac23
References9
- github.com/XXRicardo/iot-cve/blob/main/Tenda/AC21/AC21V1.0re_V1… ExploitThird Party Advisory
- github.com/XXRicardo/iot-cve/blob/main/Tenda/AC23/Stack-Based%2… ExploitThird Party Advisory
- github.com/XXRicardo/iot-cve/blob/main/Tenda/AC21/AC21V1.0re_V1… ExploitThird Party Advisory
- github.com/XXRicardo/iot-cve/blob/main/Tenda/AC23/Stack-Based%2… ExploitThird Party Advisory
- vuldb.com/?ctiid.321783 Permissions RequiredVDB Entry
- vuldb.com/?id.321783 Third Party AdvisoryVDB Entry
- vuldb.com/?submit.636545 Third Party AdvisoryVDB Entry
- vuldb.com/?submit.636548 Third Party AdvisoryVDB Entry
- www.tenda.com.cn/ Product
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
8.9
HIGH
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 6% percentile: 93 · as of 8 November 2026
- CWE
- CWE-119CWE-121
Could this be exploited in your environment?
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