CVE-2025-12622: A vulnerability was determined in Tenda AC10 16.03.10.13. Affected by this vulnerability is the function formSysRunCmd of the file /goform/SysRunCmd. This…

PriorityP267critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

0.83%

53.3th percentile

A vulnerability was determined in Tenda AC10 16.03.10.13. Affected by this vulnerability is the function formSysRunCmd of the file /goform/SysRunCmd. This manipulation of the argument getui causes buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
tenda	ac10	—	—
tenda	ac10_firmware	—	—

Detection & IOCsextracted from sources · hover to see the quote

path/goform/SysRunCmd

snort

alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Tenda SysRunCmd getui Parameter Buffer Overflow Attempt (CVE-2025-12622)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:17; content:"/goform/SysRunCmd"; fast_pattern; http.request_body; content:"getui|3d|"; pcre:"/^[^&]{100,}(?:&|$)/R"; reference:url,www.cve.org/CVERecord?id=CVE-2025-12622; reference:cve,2025-12622; classtype:web-application-attack; sid:2065634; rev:1; metadata:affected_product Tenda, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_11_03, cve CVE_2025_12622, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)

→Exploit uses HTTP POST method targeting the /goform/SysRunCmd endpoint on Tenda AC10 devices.
→The POST body must contain the 'getui=' parameter (URL-encoded as getui|3d|) with a value of 100 or more characters to trigger the buffer overflow.
→The exploit is transmitted in plaintext (no TLS), making it detectable at the network perimeter or internally.
→The URI buffer size is exactly 17 bytes, matching only /goform/SysRunCmd — use bsize:17 in detection to reduce false positives.
→Exploit is publicly disclosed and remotely initiatable; prioritize perimeter and internal network monitoring for Tenda AC10 devices running firmware 16.03.10.13. ↗

·The vulnerable function is formSysRunCmd in the file /goform/SysRunCmd; only Tenda AC10 firmware version 16.03.10.13 is confirmed affected. ↗
·The Snort/Suricata rule (ET sid:2065634) targets inbound HTTP to $HOME_NET; ensure $HOME_NET is correctly scoped to include Tenda device subnets for effective coverage.

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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