Critical severity · published Oct 27, 2025
CVE-2025-12265
Tenda CH22 VirtualSer fromVirtualSer buffer overflow
9.8
CVSS
1%
EPSS
No
On KEV
Description
A weakness has been identified in Tenda CH22 1.0.0.1. Affected by this issue is the function fromVirtualSer of the file /goform/VirtualSer. This manipulation of the argument page causes buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.
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)1.0% · higher than 64% 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-2025-12265
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-12265
Exploit
https://github.com/QIU-DIE/CVE/issues/18
Permissions Required
https://vuldb.com/?ctiid.329936
Third Party Advisory
https://vuldb.com/?id.329936
Third Party Advisory
https://vuldb.com/?submit.674012
Product
https://www.tenda.com.cn/
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