High severity · published Aug 26, 2025
CVE-2025-9443
Tenda CH22 editUserName formeditUserName buffer overflow
8.8
CVSS
0.8%
EPSS
No
On KEV
Description
A flaw has been found in Tenda CH22 1.0.0.1. This vulnerability affects the function formeditUserName of the file /goform/editUserName. Executing manipulation of the argument new_account can lead to buffer overflow. It is possible to launch the attack remotely. The exploit has been published 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)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
CH22 · Tenda
1.0.0.1 · source: vendor
CF
Ch22 Firmware · Tenda
1.0.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-9443
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-9443
Exploit
https://github.com/moweizhang1994/cve/issues/4
Permissions Required
https://vuldb.com/?ctiid.321281
Third Party Advisory
https://vuldb.com/?id.321281
Third Party Advisory
https://vuldb.com/?submit.634271
Product
https://www.tenda.com.cn/
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