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Vulnerability record · CVE-2020-22079 · published 29 October 2021

CVE-2020-22079: Tendacn ac10u firmware out-of-bounds write vulnerability

Tendacn · Ac10u Firmware

Stack-based buffer overflow in Tenda AC-10U AC1200 Router US_AC10UV1.0RTL_V15.03.06.48_multi_TDE01 allows remote attackers to execute arbitrary code via the timeZone parameter to goform/SetSysTimeCfg.

9.8 CVSS 3.1 Critical EPSS 4.2% · top 9.3% CWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score, v2 7.5
4.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Stack-based buffer overflow in Tenda AC-10U AC1200 Router US_AC10UV1.0RTL_V15.03.06.48_multi_TDE01 allows remote attackers to execute arbitrary code via the timeZone parameter to goform/SetSysTimeCfg.

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

Affected products

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

References

LinkTags
https://cwe.mitre.org/data/definitions/121.html Technical Description
https://github.com/1sd3d/Tendown/tree/master/PoCs/Auth/bof11 Broken Link
https://github.com/Lyc-heng/routers/blob/main/routers/stack1.md ExploitThird Party Advisory
https://cwe.mitre.org/data/definitions/121.html Technical Description
https://github.com/1sd3d/Tendown/tree/master/PoCs/Auth/bof11 Broken Link
https://github.com/Lyc-heng/routers/blob/main/routers/stack1.md ExploitThird Party Advisory

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Related vulnerabilities

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

9.8CVE-2024-0932Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability, which was classified as critical, has been found in Tenda AC10U 15.03.06.49_multi_TDE01. This issue affects the function setSmartPow…EPSS 0.89%9.8CVE-2024-0931Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability classified as critical was found in Tenda AC10U 15.03.06.49_multi_TDE01. This vulnerability affects the function saveParentControlInf…EPSS 0.89%9.8CVE-2024-0930Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability classified as critical has been found in Tenda AC10U 15.03.06.49_multi_TDE01. This affects the function fromSetWirelessRepeat. The ma…EPSS 15%9.8CVE-2024-0929Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda AC10U 15.03.06.49_multi_TDE01. It has been rated as critical. Affected by this issue is the function fromNatStatic…EPSS 1.1%9.8CVE-2024-0928Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda AC10U 15.03.06.49_multi_TDE01. It has been declared as critical. Affected by this vulnerability is the function fr…EPSS 1.1%9.8CVE-2024-0927Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda AC10U 15.03.06.49_multi_TDE01. It has been classified as critical. Affected is the function fromAddressNat. The ma…EPSS 0.84%9.8CVE-2024-0926Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability was found in Tenda AC10U 15.03.06.49_multi_TDE01 and classified as critical. This issue affects the function formWifiWpsOOB. The mani…EPSS 0.91%9.8CVE-2024-0925Tendacn ac10u firmware stack-based buffer overflow vulnerabilityA vulnerability has been found in Tenda AC10U 15.03.06.49_multi_TDE01 and classified as critical. This vulnerability affects the function formSetVirt…EPSS 0.91%

Source: NIST National Vulnerability Database (record CVE-2020-22079), CISA KEV, FIRST EPSS (scores of 2026-10-13). This page is refreshed as NVD updates the record.