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Vulnerability record · CVE-2023-40799 · published 25 August 2023

CVE-2023-40799: Tenda ac23 firmware out-of-bounds write vulnerability

Tenda · Ac23 Firmware

Tenda AC23 Vv16.03.07.45_cn is vulnerable to Buffer Overflow via sub_450A4C function.

9.8 CVSS 3.1 Critical EPSS 0.93% · top 41.0% CWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score
0.93%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Tenda AC23 Vv16.03.07.45_cn is vulnerable to Buffer Overflow via sub_450A4C function.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
https://github.com/lst-oss/Vulnerability/blob/main/Tenda/AC23/sub_450A4C ExploitThird Party Advisory
https://github.com/lst-oss/Vulnerability/blob/main/Tenda/AC23/sub_450A4C ExploitThird Party Advisory

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Related vulnerabilities

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

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%9.8CVE-2022-43102Tenda ac23 firmware out-of-bounds write vulnerabilityTenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the timeZone parameter in the fromSetSysTime function.EPSS 0.97%

Source: NIST National Vulnerability Database (record CVE-2023-40799), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.