A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function sub_45BB10 of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-30827 A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function sub_45BB10 of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 03 Oct 2025 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Tenda ac21 Firmware
CPEs cpe:2.3:h:tenda:ac21:-:*:*:*:*:*:*:*
cpe:2.3:o:tenda:ac21_firmware:*:*:*:*:*:*:*:*
Vendors & Products Tenda ac21 Firmware

Tue, 23 Sep 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


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

Type Values Removed Values Added
First Time appeared Tenda
Tenda ac21
Vendors & Products Tenda
Tenda ac21

Tue, 23 Sep 2025 04:45:00 +0000

Type Values Removed Values Added
Description A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function sub_45BB10 of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Title Tenda AC21 WifiExtraSet sub_45BB10 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:

Updated: 2025-09-23T19:12:30.355Z

Reserved: 2025-09-22T05:10:13.621Z

Link: CVE-2025-10838

cve-icon Vulnrichment

Updated: 2025-09-23T19:12:26.937Z

cve-icon NVD

Status : Analyzed

Published: 2025-09-23T05:15:35.010

Modified: 2025-10-03T15:09:55.663

Link: CVE-2025-10838

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-09-23T16:03:29Z