TI-2025-07465 Aliases CVE-2025-8160 GHSA-pvf3-8pcq-8mjg

Tenda AC20 httpd SetSysTimeCfg buffer overflow

HIGH 71CWE-119Published 2025-07-25 · Updated 2025-07-25

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

A vulnerability classified as critical has been found in Tenda AC20 up to 16.03.08.12. Affected is an unknown function of the file /goform/SetSysTimeCfg of the component httpd. The manipulation of the argument timeZone leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.01521 74th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Tenda	AC20	16.03.08.0; 16.03.08.1; 16.03.08.2; 16.03.08.3; 16.03.08.4; 16.03.08.5; 16.03.08.6; 16.03.08.7; 16.03.08.8; 16.03.08.9; 16.03.08.10; 16.03.08.11; 16.03.08.12	—	No fix listed	CNA

AC20 VendorTenda Affected 16.03.08.0; 16.03.08.1; 16.03.08.2; 16.03.08.3; 16.03.08.4; 16.03.08.5; 16.03.08.6; 16.03.08.7; 16.03.08.8; 16.03.08.9; 16.03.08.10; 16.03.08.11; 16.03.08.12 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:tenda:ac20_firmware:16.03.08.12:::::::*	16.03.08.12	Vulnerable	Tenda
cpe:2.3:h:tenda:ac20:-:::::::*	not specified by NVD	Running on	Tenda

cpe:2.3:o:tenda:ac20_firmware:16.03.08.12:*:*:*:*:*:*:* Versions 16.03.08.12 Vulnerable ·Tenda
cpe:2.3:h:tenda:ac20:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-8160
2026-10-03 Alias added: GHSA-pvf3-8pcq-8mjg

References

Exploit 1

https://github.com/CH13hh/cve/blob/main/tenda1.md

Other 1

https://www.tenda.com.cn/

TI-2025-13393 Tenda AC20 openSchedWifi httpd buffer overflow CVSS 4.0HIGH 8.7
TI-2025-13392 Tenda AC20 httpd SetSysAutoRebbotCfg formSetRebootTimer stack-based overflow CVSS 4.0HIGH 8.7
TI-2025-13391 Tenda AC20 httpd setPptpUserList formSetPPTPUserList stack-based overflow CVSS 4.0HIGH 8.7
TI-2025-14008 Tenda AC20 PowerSaveSet sscanf buffer overflow CVSS 4.0HIGH 8.7
TI-2025-12122 Tenda AC20 WifiExtraSet buffer overflow CVSS 4.0HIGH 8.7
TI-2025-09906 Tenda AC20 HTTP POST Request SetPptpServerCfg strcpy buffer overflow CVSS 4.0HIGH 8.7

See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences