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Vulnerability record · CVE-2025-15217 · published 30 December 2025

CVE-2025-15217: Tenda ac23 firmware memory buffer overflow vulnerability

Tenda · Ac23 Firmware

A security flaw has been discovered in Tenda AC23 16.03.07.52. Affected is the function formSetPPTPUserList of the component HTTP POST Request Handler. Performing a manipulation of the argument list results in buffer overflow. The attack can be initiated remotely.

7.4 CVSS 4.0 High EPSS 0.74% · top 47.3% CWE-119 · Memory buffer overflowCWE-120 · Classic buffer overflow
7.4CVSS 4.0 base score, v2 9.0
0.74%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A security flaw has been discovered in Tenda AC23 16.03.07.52. Affected is the function formSetPPTPUserList of the component HTTP POST Request Handler. Performing a manipulation of the argument list results in buffer overflow. The attack can be initiated remotely.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lavender-bicycle-a5a.notion.site/Tenda-AC23-formSetPPTPUserList-2d753a41781f8091b772cf9e66a687f1?source=copy_lin ExploitThird Party Advisory
https://vuldb.com/?ctiid.338602 Permissions RequiredVDB Entry
https://vuldb.com/?id.338602 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.725448 Third Party AdvisoryVDB Entry
https://www.tenda.com.cn/ Product
https://lavender-bicycle-a5a.notion.site/Tenda-AC23-formSetPPTPUserList-2d753a41781f8091b772cf9e66a687f1 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-40799Tenda ac23 firmware out-of-bounds write vulnerabilityTenda AC23 Vv16.03.07.45_cn is vulnerable to Buffer Overflow via sub_450A4C function.EPSS 0.93%9.8CVE-2023-0782Tenda ac23 firmware out-of-bounds write vulnerabilityA vulnerability was found in Tenda AC23 16.03.07.45 and classified as critical. Affected by this issue is the function formSetSysToolDDNS/formGetSysT…EPSS 1.5%9.8CVE-2022-43107Tenda ac23 firmware out-of-bounds write vulnerabilityTenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the time parameter in the setSmartPowerManagement function.EPSS 0.97%9.8CVE-2022-43108Tenda ac23 firmware out-of-bounds write vulnerabilityTenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the firewallEn parameter in the formSetFirewallCfg function.EPSS 0.97%9.8CVE-2022-43106Tenda ac23 firmware out-of-bounds write vulnerabilityTenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the schedStartTime parameter in the setSchedWifi function.EPSS 0.97%9.8CVE-2022-43104Tenda ac23 firmware out-of-bounds write vulnerabilityTenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the wpapsk_crypto parameter in the fromSetWirelessRepeat function.EPSS 0.97%9.8CVE-2022-43105Tenda ac23 firmware out-of-bounds write vulnerabilityTenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the shareSpeed parameter in the fromSetWifiGusetBasic function.EPSS 0.97%9.8CVE-2022-43103Tenda ac23 firmware out-of-bounds write vulnerabilityTenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the list parameter in the formSetQosBand function.EPSS 0.97%

Source: NIST National Vulnerability Database (record CVE-2025-15217), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.