CVE-2025-12211

A security flaw has been discovered in Tenda O3 1.0.0.10(2478). Affected by this issue is the function SetValue/GetValue of the file /goform/setDmzInfo. The manipulation of the argument dmzIP results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

CVSS 4.0

7.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

CVSS 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-25)

CWEs

CWE-119, CWE-121

Published

2025-10-27

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• tenda:o3_firmware1.0.0.10\(2478\)

References

• https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDmzInfo.md
• https://vuldb.com/?ctiid.329881
• https://vuldb.com/?id.329881
• https://vuldb.com/?submit.673265
• https://www.tenda.com.cn/

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