CVE-2025-9299: A vulnerability has been found in Tenda M3 1.0.0.12. Affected by this vulnerability is the function formGetMasterPassengerAnalyseData of the file…

PriorityP272critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

4.30%

89.9th percentile

A vulnerability has been found in Tenda M3 1.0.0.12. Affected by this vulnerability is the function formGetMasterPassengerAnalyseData of the file /goform/getMasterPassengerAnalyseData. The manipulation of the argument Time leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
tenda	m3	—	—
tenda	m3_firmware	—	—

Detection & IOCsextracted from sources · hover to see the quote

path/goform/getMasterPassengerAnalyseData↗

snort

alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Tenda getMasterPassengerAnalyseData time Parameter Buffer Overflow Attempt (CVE-2025-9299)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:37; content:"/goform/getMasterPassengerAnalyseData"; fast_pattern; http.request_body; content:"time|3d|"; pcre:"/^[^&]{100,}(?:&|$)/R"; reference:url,github.com/davybat/IoT-Vuls/blob/main/tenda/formGetMasterPassengerAnalyseData.md; reference:cve,2025-9299; classtype:web-application-attack; sid:2064098; rev:1; metadata:affected_product Tenda, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_08_22, cve CVE_2025_9299, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_08_22, 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 URI /goform/getMasterPassengerAnalyseData with a URI bsize of exactly 37 bytes.
→Inspect the HTTP request body for the 'time=' parameter (URL-encoded as 'time|3d|') followed by a value of 100 or more characters not containing '&', indicating a buffer overflow attempt.
→The exploit is delivered over plaintext HTTP (not TLS); deploy detection at the network perimeter and internally.
→The attack is initiated remotely via manipulation of the 'Time' argument in the POST body, triggering a stack-based buffer overflow in formGetMasterPassengerAnalyseData. ↗

·Affected product is Tenda M3 firmware version 1.0.0.12 only; scope detection to this specific device/firmware. ↗
·The exploit has been publicly disclosed; treat any matching traffic as high-confidence malicious activity. ↗

CVSS provenance

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

nvdv4.07.4HIGHCVSS: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

nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C

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