CVE-2025-12209

Name: CVE-2025-12209
Creator: NVD / NIST
Published: 2025-10-27T03:15:50.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.94%

Last modified Jun 17, 2026

CVE-2025-12209 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file /goform/setDhcpConfig. EPSS estimates a 0.94% chance of exploitation in the next 30 days.

Description

A vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file /goform/setDhcpConfig. Executing a manipulation of the argument dhcpEn can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.

Metrics

CVSS 3.1

8.8/10

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

CVSS 4.0

7.4/10

CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.94%

56.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tenda	O3 Firmware1.0.0.10\(2478\)	All versions

References

https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDhcpConfig.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.329879Permissions Required, VDB Entry
https://vuldb.com/?id.329879Third Party Advisory, VDB Entry
https://vuldb.com/?submit.673263Third Party Advisory, VDB Entry
https://www.tenda.com.cn/Product
https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDhcpConfig.mdExploit, Third Party Advisory

Timeline

Published: Oct 27, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-12209?

How severe is CVE-2025-12209?

CVE-2025-12209 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.94% probability of exploitation in the next 30 days.

How do I fix CVE-2025-12209?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-12209?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST