High severity · published Jul 11, 2025
CVE-2025-7420
A vulnerability was found in Tenda O3V2 1.0.0.12(3880)
8.8
CVSS
1%
EPSS
No
On KEV
Description
A vulnerability was found in Tenda O3V2 1.0.0.12(3880). It has been declared as critical. This vulnerability affects the function formWifiBasicSet of the file /goform/setWrlBasicInfo of the component httpd. The manipulation of the argument extChannel leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OF
O3 Firmware · Tenda
1.0.0.12(3880) · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-7420
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-7420
Exploit
https://github.com/wudipjq/my_vuln/blob/main/Tenda3/vuln_53/53.md
Exploit
https://github.com/wudipjq/my_vuln/blob/main/Tenda3/vuln_53/53.md#poc
Permissions Required
https://vuldb.com/?ctiid.315880
Third Party Advisory
https://vuldb.com/?id.315880
Third Party Advisory
https://vuldb.com/?submit.608866
Product
https://www.tenda.com.cn/
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