CVE-2020-22079
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.17%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.17% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- tendacn/ac10u firmware · tendacn/ac9 firmware
- Source
- cve@mitre.org
EPSS 4.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://cwe.mitre.org/data/definitions/121.htmlTechnical Description
- https://github.com/1sd3d/Tendown/tree/master/PoCs/Auth/bof11Broken Link
- https://github.com/Lyc-heng/routers/blob/main/routers/stack1.mdExploit, Third Party Advisory
- https://cwe.mitre.org/data/definitions/121.htmlTechnical Description
- https://github.com/1sd3d/Tendown/tree/master/PoCs/Auth/bof11Broken Link
- https://github.com/Lyc-heng/routers/blob/main/routers/stack1.mdExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.