Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticate to router web interface
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DeliverySend crafted POST to /goform/SetIPTVCfg
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ExploitInject commands via 'list' parameter
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ExecutionExecute arbitrary OS commands
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ImpactCompromise router integrity
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Input neutralization, injection prevention
|
| Exploitation Conditions | Requires low-privileged authentication to the router's web interface (PR:L). The attacker must be able to send POST requests to the /goform/SetIPTVCfg endpoint. No special configuration is needed beyond default settings. The attack is remote over the network (AV:N). |
| Impact | CVSS 4.0 base score is 2.1 (Low) with vector AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L, indicating low impact on confidentiality, integrity, and availability. However, the EPSS score of 2.05% (84th percentile) suggests moderate exploitation probability. A public exploit exists, increasing risk. The attack requires low privileges (PR:L), meaning an attacker needs a valid account on the router. No CISA KEV listing indicates no confirmed active exploitation. Overall, risk is moderate for environments where attackers can obtain low-privileged access to the router's web interface. |
| Exploit ScenarioDerived | An attacker with low-privileged access to the router's web interface sends a crafted POST request to /goform/SetIPTVCfg with a malicious 'list' parameter containing command injection payloads. This results in arbitrary command execution on the router, potentially allowing further network compromise. A public exploit is available, simplifying the attack. |
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Alert meAnalysisAIv2 – Jul 26, 2026
Command injection in Tenda AC9 router firmware 15.03.02.13 allows remote authenticated attackers to execute arbitrary commands via the 'list' parameter in the formSetIptv handler. A public exploit is available, and EPSS score (2.05%, 84th percentile) indicates moderate exploitation likelihood, though no active exploitation in CISA KEV is reported.
Earlier versions of this analysis (1)
RemediationAI
Upgrade to a patched firmware version if available; Tenda has not released a fix as of analysis. As a workaround, restrict access to the router's web interface to trusted networks only, disable remote management, and change default credentials. Monitor for vendor updates at https://www.tenda.com.cn/. Note that disabling IPTV functionality may mitigate the attack vector but could affect service.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The vulnerability resides in the POST request handler for /goform/SetIPTVCfg, which processes IPTV configuration. The 'list' argument is not sanitized before being used in a system command, leading to OS command injection (CWE-74). The affected product is Tenda AC9 router firmware version 15.03.02.13, a consumer-grade wireless router. The CPE string cpe:2.3:o:tenda:ac9_firmware:15.03.2.13 confirms the exact firmware version.
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
PR:L due to required authentication; low impact on CIA
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
5DescriptionCVE.org
A vulnerability was found in Tenda AC9 15.03.02.13. It has been rated as critical. This issue affects the function formSetIptv of the file /goform/SetIPTVCfg of the component POST Request Handler. The manipulation of the argument list leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
Executive ViewAI
Organizations using A vulnerability should be aware of moderate risk from CVE-2025-5836, a injection vulnerability rated CVSS 6.3. Exploitation could allow attackers to execute code or inject malicious input. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: deploy WAF rules, restrict network access, enable logging.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
More in Ac9 Firmware
View allTenda AC9 v15.03.05.14 was discovered to contain a command injection vulnerability via the Telnet function. Rated critic
In Tenda AC9 v1.0 V15.03.05.14_multi, the wanMTU parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerability
Tenda AC9 V15.03.06.42_multi was found to contain a command injection vulnerability in the formSetSambaConf function via
Tenda AC9 V15.03.06.42_multi was found to contain a command injection vulnerability in the formsetUsbUnload function via
In the Tenda ac9 v1.0 router with firmware V15.03.05.14_multi, there is a stack overflow vulnerability in /goform/WifiWp
In Tenda ac9 v1.0 with firmware V15.03.05.14_multi, the rebootTime parameter of /goform/SetSysAutoRebbotCfg has a stack
In Tenda AC9 v1.0 with firmware V15.03.05.14_multi, the security parameter of /goform/WifiBasicSet has a stack overflow
In Tenda AC9 v1.0 V15.03.05.14_multi, the mac parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerability, w
In Tenda AC9 v1.0 V15.03.05.14_multi, the cloneType parameter of /goform/AdvSetMacMtuWan has a stack overflow vulnerabil
A Command Injection vulnerability exists in formWriteFacMac of the httpd binary in Tenda AC9 v15.03.06.42. Rated critica
Buffer Overflow vulnerability in the function setSchedWifi in Tenda AC9 v.3.0, firmware version v.15.03.06.42_multi allo
Tenda AC9 V3.0BR_V15.03.06.42_multi_TD01 was discovered stack overflow via parameter 'firewall_value' at url /goform/Set
EUVD-2025-17376
NVD
CVE.org
EPSS
VulDB
GitHub PoC
Exploit-DB