cbcvebase.
CVE-2025-14879
published 2025-12-18

CVE-2025-14879: A weakness has been identified in Tenda WH450 1.0.0.18. Affected is an unknown function of the file /goform/onSSIDChange of the component HTTP Request Handler…

PriorityP274critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
5.97%
92.5th percentile
A weakness has been identified in Tenda WH450 1.0.0.18. Affected is an unknown function of the file /goform/onSSIDChange of the component HTTP Request Handler. This manipulation of the argument ssid_index causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

Affected

2 ranges
VendorProductVersion rangeFixed in
tendawh450——
tendawh450_firmware——

Detection & IOCsextracted from sources · hover to see the quote

path/goform/onSSIDChange↗
snort
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Tenda onSSIDChange ssid_index Parameter Buffer Overflow Attempt (CVE-2025-14879)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:20; content:"/goform/onSSIDChange"; fast_pattern; http.request_body; content:"ssid_index|3d|"; pcre:"/^[^&]{100,}(?:&|$)/R"; reference:url,www.cve.org/CVERecord?id=CVE-2025-14879; reference:cve,2025-14879; classtype:web-application-attack; sid:2066383; rev:1; metadata:affected_product Tenda, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_12_18, cve CVE_2025_14879, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_12_18, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)
  • →Attack is delivered via HTTP POST to the URI /goform/onSSIDChange; match on HTTP method POST and exact URI (bsize:20) for precise detection.
  • →The vulnerable parameter is ssid_index in the POST body; look for ssid_index= (URL-encoded as ssid_index|3d|) followed by an abnormally long value (100+ characters before & or end-of-body) as the overflow trigger.
  • →Exploit is publicly available and the attack is initiated remotely over plaintext HTTP targeting networking equipment; prioritise perimeter and internal deployment monitoring.
  • →MITRE mapping: TA0001 Initial Access / T1190 Exploit Public-Facing Application — correlate with other exploitation attempts against edge/networking devices.
  • ·The Snort/Suricata rule (sid:2066383) targets plaintext HTTP only (tls_state plaintext); if the device is accessed over HTTPS or a TLS-terminating proxy is in use, the rule will not fire and additional inspection is required.
  • ·The affected product is Tenda WH450 firmware version 1.0.0.18 specifically; confirm firmware version before applying detection rules to avoid false positives on other Tenda models sharing the same endpoint.

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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