Ac15 Firmware
CVE-2026-24105
CRITICAL
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessSend HTTP request to goform/formsetUsbUnload
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ExploitInject malicious commands in v1 parameter
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ExecutionExecute arbitrary system commands as root
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ImpactAchieve full device compromise
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Code injection prevention, sandbox exec
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Tenda AC15V1.0 firmware V15.03.05.18_multi must be running with default web interface enabled. No authentication required. The formsetUsbUnload endpoint must be accessible on the network interface without credentials. |
| Impact | CVSS 9.8, EPSS 1.7% with PoC. |
| Exploit ScenarioDerived | An attacker exploits the USB handler code injection to gain root access. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Tenda AC15 router has a code injection in formsetUsbUnload (EPSS 1.7%) enabling unauthenticated remote code execution.
Earlier versions of this analysis (1)
Code injection in Tenda AC15 USB handler enables RCE with high exploitation probability.
RemediationAI
Update firmware.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Tenda AC15 has a CWE-94 code injection in formsetUsbUnload with EPSS 1.7% — highest exploitation probability among the Tenda router vulnerabilities.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
An issue was discovered in goform/formsetUsbUnload in Tenda AC15V1.0 V15.03.05.18_multi. The value of v1 was not checked, potentially leading to a command injection vulnerability if injected into doSystemCmd.
Executive ViewAI
A critical remote code execution vulnerability (CVE-2026-24105) affects Tenda AC15 routers with no available patch. Attackers can exploit this without authentication to gain complete control of affected devices, potentially compromising network security and enabling lateral movement into organizational systems. Any organization using these routers requires immediate action to reduce exposure.
Implement network segmentation to isolate affected Tenda routers from critical systems; deploy WAF rules to block requests to /goform/formsetUsbUnload endpoint; restrict administrative access via firewall rules; disable UPnP and remote management features; monitor for exploitation attempts via IDS/IPS; establish vendor contact for patch ETA; consider temporary device replacement with alternative vendors.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
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.
Affected Products (CPE)CVE.org
Related Vulnerabilities in Tenda AC15 Command and Buffer Overflow
View all 2More in Ac15 Firmware
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Buffer overflow in Tenda AC15V1.0 via formSetMacFilterCfg. PoC available.
A vulnerability classified as critical was found in Tenda AC15 15.03.05.18/15.03.05.19/15.03.20. Rated critical severity
A vulnerability was found in Tenda AC15 15.03.20_multi. Rated critical severity (CVSS 9.8), this vulnerability is remote
A vulnerability was found in Tenda AC15 15.03.05.18/15.03.20_multi. Rated critical severity (CVSS 9.8), this vulnerabili
A vulnerability was found in Tenda AC15 15.03.05.18 and classified as critical. Rated critical severity (CVSS 9.8), this
A vulnerability classified as critical has been found in Tenda AC15 15.03.20_multi. Rated critical severity (CVSS 9.8),
A vulnerability was found in Tenda AC15 15.03.20_multi. Rated critical severity (CVSS 9.8), this vulnerability is remote
A vulnerability was found in Tenda AC15 15.03.20_multi. Rated critical severity (CVSS 9.8), this vulnerability is remote
A vulnerability was found in Tenda AC15 15.03.20_multi and classified as critical. Rated critical severity (CVSS 9.8), t
A vulnerability has been found in Tenda AC15 15.03.05.18/15.03.20_multi and classified as critical. Rated critical sever
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