A vulnerability was identified in Tenda AC20 up to 16.03.08.12. Affected by this issue is the function strcpy of the file /goform/SetPptpServerCfg of the component HTTP POST Request Handler. Such manipulation of the argument startIp leads to buffer overflow. The attack can be launched remotely. The exploit is publicly available and might be used.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Tenda
  • Ac20
  • Ac20 Firmware

Configuration 1 [-]

AND
cpe:2.3:o:tenda:ac20_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:tenda:ac20:-:*:*:*:*:*:*:*

No data.

References
Link Providers
https://github.com/Juana-2u/Tenda-AC20 cve-icon cve-icon
https://vuldb.com/?ctiid.325173 cve-icon cve-icon
https://vuldb.com/?id.325173 cve-icon cve-icon
https://vuldb.com/?submit.654460 cve-icon cve-icon
https://www.tenda.com.cn/ cve-icon cve-icon
History

Thu, 25 Sep 2025 18:15:00 +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:*:*:*:*:*:*:*:*
Vendors & Products Tenda ac20 Firmware

Tue, 23 Sep 2025 16:15:00 +0000

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

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

Mon, 22 Sep 2025 21:15:00 +0000

Type Values Removed Values Added
Description A vulnerability was identified in Tenda AC20 up to 16.03.08.12. Affected by this issue is the function strcpy of the file /goform/SetPptpServerCfg of the component HTTP POST Request Handler. Such manipulation of the argument startIp leads to buffer overflow. The attack can be launched remotely. The exploit is publicly available and might be used.
Title Tenda AC20 HTTP POST Request SetPptpServerCfg strcpy buffer overflow
Weaknesses CWE-119
CWE-120
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: 2025-09-22T21:02:08.431Z

Updated: 2025-09-23T16:02:43.704Z

Reserved: 2025-09-21T10:22:10.626Z

Link: CVE-2025-10815

cve-icon Vulnrichment

Updated: 2025-09-23T16:02:40.533Z

cve-icon NVD

Status : Analyzed

Published: 2025-09-22T21:15:59.380

Modified: 2025-09-25T18:07:11.053

Link: CVE-2025-10815

cve-icon Redhat

No data.