A vulnerability classified as critical was found in Tenda AC20 16.03.08.05. Affected by this vulnerability is the function strcpy of the file /goform/SetFirewallCfg. The manipulation of the argument firewallEn leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
History

Thu, 14 Aug 2025 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Tenda ac20 Firmware
CPEs cpe:2.3:h:tenda:ac20:-:*:*:*:*:*:*:*
cpe:2.3:o:tenda:ac20_firmware:16.03.08.05:*:*:*:*:*:*:*
Vendors & Products Tenda ac20 Firmware

Tue, 12 Aug 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 12 Aug 2025 07:45:00 +0000

Type Values Removed Values Added
First Time appeared Tenda
Tenda ac20
Vendors & Products Tenda
Tenda ac20

Sun, 10 Aug 2025 13:30:00 +0000

Type Values Removed Values Added
Description A vulnerability classified as critical was found in Tenda AC20 16.03.08.05. Affected by this vulnerability is the function strcpy of the file /goform/SetFirewallCfg. The manipulation of the argument firewallEn leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Title Tenda AC20 SetFirewallCfg strcpy stack-based overflow
Weaknesses CWE-119
CWE-121
References
Metrics cvssV2_0

{'score': 9, 'vector': 'AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 8.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2025-08-10T13:02:08.230Z

Updated: 2025-08-12T19:41:47.916Z

Reserved: 2025-08-09T07:58:15.073Z

Link: CVE-2025-8810

cve-icon Vulnrichment

Updated: 2025-08-12T19:41:38.954Z

cve-icon NVD

Status : Analyzed

Published: 2025-08-10T14:15:32.457

Modified: 2025-08-14T16:29:26.347

Link: CVE-2025-8810

cve-icon Redhat

No data.