TI-2025-11194 Aliases CVE-2025-12211 GHSA-5rcg-7jx4-f3xr

Tenda O3 setDmzInfo GetValue stack-based overflow

HIGH 73CWE-119Published 2025-10-27 · Updated 2026-02-24

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00836 57th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Tenda	O3	1.0.0.10(2478)	—	No fix listed	CNA

O3 VendorTenda Affected 1.0.0.10(2478) Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:tenda:o3_firmware1.0.0.10\(2478\)::::::::	all versions	Vulnerable	Tenda
cpe:2.3:h:tenda:o3:2.0:::::::*	2.0	Running on	Tenda

cpe:2.3:o:tenda:o3_firmware1.0.0.10\(2478\):*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Tenda
cpe:2.3:h:tenda:o3:2.0:*:*:*:*:*:*:* Versions 2.0 Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-12211
2026-10-03 Alias added: GHSA-5rcg-7jx4-f3xr

References

Exploit 1

https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDmzInfo.md

Other 1

https://www.tenda.com.cn/

TI-2025-11196 Tenda O3 setVlanConfig GetValue stack-based overflow CVSS 4.0HIGH 8.7
TI-2025-11195 Tenda O3 setNetworkService GetValue stack-based overflow CVSS 4.0HIGH 8.7
TI-2025-11193 Tenda O3 AdvSetLanip GetValue stack-based overflow CVSS 4.0HIGH 8.7
TI-2025-11192 Tenda O3 setDhcpConfig GetValue stack-based overflow CVSS 4.0HIGH 8.7
TI-2024-06464 Tenda O3 fromVirtualSet stack-based overflow CVSS 4.0HIGH 8.7
TI-2024-06463 Tenda O3 fromDhcpSetSer stack-based overflow CVSS 4.0HIGH 8.7

See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences