EUVD-2025-17585Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessCraft malicious CSRF link
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DeliveryDeliver via phishing email
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ExploitAdmin clicks while authenticated
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ExecutionRouter executes reboot or restore
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ImpactTemporary denial of service
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Anti-CSRF tokens, SameSite cookies
MITRE ATT&CK
1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | The attacker must trick an authenticated admin user into clicking a malicious link or visiting a crafted page while the admin is logged into the router's web interface. No special configuration is required beyond default settings. The attack is remote but requires user interaction (UI:P). |
| Impact | CVSS 4.0 base score is 2.1 (Low) with vector AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N, indicating low impact and requiring user interaction. EPSS score is 0.05% (16th percentile), suggesting very low exploitation probability. Public exploit code is available, but no CISA KEV listing. The risk is low due to the need for user interaction and limited impact (integrity only, no confidentiality or availability). |
| Exploit ScenarioDerived | An attacker hosts a malicious webpage containing a crafted request to the router's reboot endpoint. If an authenticated admin visits the page while logged into the router, the router reboots, causing temporary denial of service. Public exploit code is available. |
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Alert meAnalysisAIv2 – Jul 26, 2026
Cross-site request forgery in Tenda AC9 router firmware 15.03.02.13 allows an attacker to trigger unintended actions like reboot or factory reset by tricking an authenticated admin into visiting a malicious page. Public exploit code exists, but no active exploitation has been confirmed.
Earlier versions of this analysis (1)
RemediationAI
No vendor-released patch identified at time of analysis. As a workaround, disable remote management access to the router's web interface, restrict access to trusted IPs, and ensure the admin user logs out after each session. Users should monitor Tenda's support page for future firmware updates.
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 is a Cross-Site Request Forgery (CSRF) in the Tenda AC9 router's web management interface, specifically in the fromSysToolReboot and fromSysToolRestoreSet functions. CSRF exploits the trust a site has in a user's browser, allowing an attacker to forge requests that execute privileged actions if the victim is authenticated. The affected product is Tenda AC9 firmware version 15.03.2.13, a consumer-grade router.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Network attack vector, low complexity, no privileges, user interaction required, low integrity impact.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
5DescriptionCVE.org
A vulnerability, which was classified as problematic, was found in Tenda AC9 15.03.02.13. This affects an unknown part. The manipulation leads to cross-site request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Executive ViewAI
CVE-2025-5900 presents moderate security risk, a cross-site request forgery vulnerability rated CVSS 4.3. Users could be tricked into performing unintended actions. 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: implement SameSite cookie attributes and anti-CSRF tokens.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
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
Cross-Site Request Forgery exploits the automatic credential inclusion behavior of web browsers.
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
GitHub PoC
Exploit-DB