Critical severity · published Nov 19, 2025
CVE-2025-13400
A vulnerability was detected in Tenda CH22 1.0.0.1
9.8
CVSS
0.8%
EPSS
No
On KEV
Description
A vulnerability was detected in Tenda CH22 1.0.0.1. Affected is the function formWrlExtraGet of the file /goform/WrlExtraGet. Performing a manipulation of the argument chkHz results in buffer overflow. Remote exploitation of the attack is possible. The exploit is now public and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CF
Ch22 Firmware · Tenda
1.0.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-13400
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-13400
Exploit
https://github.com/f000x0/cve/issues/14
Permissions Required
https://vuldb.com/?ctiid.332926
Third Party Advisory
https://vuldb.com/?id.332926
Third Party Advisory
https://vuldb.com/?submit.692145
Product
https://www.tenda.com.cn/
More from Ch22 Firmware
9.8
CVE-2026-5962
Tenda CH22 httpd R7WebsSecurityHandlerfunction path traversal
9.8
CVE-2025-12273
A weakness has been identified in Tenda CH22 1.0.0.1
9.8
CVE-2025-12272
A security flaw has been discovered in Tenda CH22 1.0.0.1
9.8
CVE-2025-12271
A vulnerability was identified in Tenda CH22 1.0.0.1
9.8
CVE-2025-12265
A weakness has been identified in Tenda CH22 1.0.0.1