What is CVE-2025-12265?

CVE-2025-12265 is a high-severity vulnerability in Tenda Ch22, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-10-27.

How severe is CVE-2025-12265?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Tenda Ch22

CVE-2025-12265

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…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (31.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). 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.

Affected products

Tenda Ch22 — versions 1.0.0.1

Weakness classification (CWE)

References

VDB-329936 | Tenda CH22 VirtualSer fromVirtualSer buffer overflow (vdb-entry, technical-description)
VDB-329936 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #674012 | Tenda CH22 V1.0.0.1 Buffer Overflow (third-party-advisory)
github.com/QIU-DIE/CVE/issues/18 (broken-link, exploit, issue-tracking)
www.tenda.com.cn/ (product)

Frequently asked questions

What is CVE-2025-12265?: CVE-2025-12265 is a high-severity vulnerability in Tenda Ch22, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-10-27.
How severe is CVE-2025-12265?: High severity. CVSS v3 base score is 8.8 out of 10.