CVE-2025-10443: A vulnerability was identified in Tenda AC9 and AC15 15.03.05.14/15.03.05.18. This vulnerability affects the function formexeCommand of the file…

PriorityP269high8.8CVSS 3.1

AVNACLPRLUINSUCHIHAH

EPSS

3.71%

88.5th percentile

A vulnerability was identified in Tenda AC9 and AC15 15.03.05.14/15.03.05.18. This vulnerability affects the function formexeCommand of the file /goform/exeCommand. Such manipulation of the argument cmdinput leads to buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
tenda	ac15	—	—
tenda	ac15	—	—
tenda	ac15_firmware	—	—
tenda	ac9	—	—
tenda	ac9	—	—
tenda	ac9_firmware	—	—

Detection & IOCsextracted from sources · hover to see the quote

url/goform/exeCommand

urlhttps://github.com/2664521593/mycve/blob/main/Tenda/Tenda_AC15_AC9_Bof.md#poc

snort

alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Tenda exeCommand cmdinput Parameter Buffer Overflow Attempt M2 (CVE-2025-10443)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/goform/exeCommand"; startswith; fast_pattern; content:"cmdinput|3d|"; distance:0; pcre:"/^[^&]{100,}(?:&|$)/R"; reference:url,github.com/2664521593/mycve/blob/main/Tenda/Tenda_AC15_AC9_Bof.md#poc; reference:cve,2025-10443; classtype:web-application-attack; sid:2064691; rev:1; metadata:affected_product Tenda, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_09_15, cve CVE_2025_10443, 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;)

→Exploit targets HTTP GET requests to /goform/exeCommand with a 'cmdinput' parameter value exceeding 100 characters (buffer overflow trigger). Match on URI starting with /goform/exeCommand and cmdinput= followed by >=100 non-ampersand characters.
→Attack is delivered over plaintext HTTP (not TLS); deploy detection at perimeter and internal network boundaries.
→The vulnerability is in the function formexeCommand of the file /goform/exeCommand; manipulation of the 'cmdinput' argument leads to buffer overflow exploitable remotely. ↗
→Public exploit PoC is available at the referenced GitHub repository; threat actors may actively use it. ↗

·Affected devices are Tenda AC9 and AC15 running firmware versions 15.03.05.14 and 15.03.05.18 only; scope detection to those specific firmware versions to reduce false positives. ↗
·The Snort/Suricata rule (ET sid:2064691) uses a PCRE threshold of 100+ characters for the cmdinput value; tuning this threshold may be needed to balance detection sensitivity vs. false positive rate in environments with legitimate long parameter values.

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/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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