CVE-2020-22079

Stack-based buffer overflow in Tenda AC-10U AC1200 Router US_AC10UV1.0RTL_V15.03.06...

9.8 Critical

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

4.25%Up 2.9 points since Oct 30, 2021

What each source reports

NVD Score used 9.8

Record: CVE-2020-22079
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-787
Updated: 2026-11-02

CVE List No score

Record: CVE-2020-22079
Updated: 2026-11-02

EUVDEUVD-2020-14845 No score

Record: EUVD-2020-14845
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6w98-944g-gpp5 9.8

Stack-based buffer overflow in Tenda AC-10U AC1200 Router US_AC10UV1.0RTL_V15.03.06...

Record: GHSA-6w98-944g-gpp5
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-22079 is a critical vulnerability (CVSS 9.8) in Tendacn Ac10u Firmware, published October 29, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.25%, the 91st percentile. No source names a fixed version.