CVE-2025-10432: A vulnerability was found in Tenda AC1206 15.03.06.23. This vulnerability affects the function check_param_changed of the file /goform/AdvSetMacMtuWa of the…

PriorityP271critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

1.46%

70.4th percentile

A vulnerability was found in Tenda AC1206 15.03.06.23. This vulnerability affects the function check_param_changed of the file /goform/AdvSetMacMtuWa of the component HTTP Request Handler. Performing manipulation of the argument wanMTU results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made public and could be used.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
tenda	ac1206	—	—
tenda	ac1206_firmware	—	—

Detection & IOCsextracted from sources · hover to see the quote

path/goform/AdvSetMacMtuWan

urlgithub.com/M4st3rYi/IoTVulPocs/blob/main/Tenda/AC1206/fromAdvSetMacMtuWan.md

snort

alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Tenda AdvSetMacMtuWan wanMTU Parameter Buffer Overflow Attempt (CVE-2025-10432)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:23; content:"/goform/AdvSetMacMtuWan"; fast_pattern; http.request_body; content:"wanMTU|3d|"; pcre:"/^[^&]{100,}(?:&|$)/R"; reference:url,github.com/M4st3rYi/IoTVulPocs/blob/main/Tenda/AC1206/fromAdvSetMacMtuWan.md; reference:cve,2025-10432; classtype:web-application-attack; sid:2064686; rev:1; metadata:affected_product Tenda, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_09_15, cve CVE_2025_10432, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_09_15, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)

→Match HTTP POST requests to the exact URI /goform/AdvSetMacMtuWan (bsize:23) with a request body containing 'wanMTU=' followed by a value of 100 or more characters (not containing '&'), indicating a buffer overflow attempt.
→The vulnerable function is check_param_changed in /goform/AdvSetMacMtuWa (NVD) / AdvSetMacMtuWan (Snort rule); the wanMTU parameter is the overflow vector. Monitor for abnormally long wanMTU values in HTTP request bodies. ↗
→Exploitation is plaintext HTTP (not TLS), targeting networking equipment on the perimeter or internal network. Deploy detection at perimeter and internal network chokepoints.
→A public proof-of-concept exploit exists for this vulnerability and should be treated as actively exploitable. ↗

·The NVD advisory references the endpoint as /goform/AdvSetMacMtuWa while the Snort rule targets /goform/AdvSetMacMtuWan (bsize:23). Ensure detection coverage accounts for both endpoint name variants. ↗
·The Snort rule uses a PCRE threshold of 100+ characters for the wanMTU value to flag overflow attempts. Tuning this threshold may be necessary to balance false positive/negative rates in specific environments.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv4.08.9HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/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

nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C

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