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    CVE-2025-5836

    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.

    Published:Jun 7, 2025
    Last Modified:Jun 9, 2025
    EPS:Jun 7, 2025
    EPSS Score:0.06605
    CVSS Score:6.3

    Affected Products

    Vendor
    Tenda
    Product
    Ac9
    Vendor
    Tenda
    Product
    Ac9 Firmware

    Exploits

    https://candle-throne-f75.notion.site/Tenda-AC9-formSetIptv-209df0aa11858061ae2bcbf83918d034https://candle-throne-f75.notion.site/Tenda-AC9-formSetIptv-209df0aa11858061ae2bcbf83918d034

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-105 HTTP Request Splitting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-136 LDAP Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-15 Command Delimiters
    CAPEC-183 IMAP/SMTP Command Injection
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-248 Command Injection
    CAPEC-250 XML Injection
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-273 HTTP Response Smuggling
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-34 HTTP Response Splitting
    CAPEC-40 Manipulating Writeable Terminal Devices
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-51 Poison Web Service Registry
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-6 Argument Injection
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-75 Manipulating Writeable Configuration Files
    CAPEC-76 Manipulating Web Input to File System Calls
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-83 XPath Injection
    CAPEC-84 XQuery Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    Related CVEs

    CVE-2026-86300 (CVSS 5.5) — A flaw has been found in Tenda AC9 15.03.05.14. This impacts the function R7WebsSecurityHandler of the compone…
    CVE-2026-6016 (CVSS 7.4) — A vulnerability was found in Tenda AC9 15.03.02.13. The affected element is the function decodePwd of the file…
    CVE-2026-6015 (CVSS 7.4) — A vulnerability has been found in Tenda AC9 15.03.02.13. Impacted is the function formQuickIndex of the file /…
    CVE-2026-2192 (CVSS 7.3) — A security vulnerability has been detected in Tenda AC9 15.03.06.42_multi. Affected by this vulnerability is t…
    CVE-2026-2191 (CVSS 7.3) — A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList…
    CVE-2025-14286 (CVSS 5.5) — A vulnerability was determined in Tenda AC9 15.03.05.14_multi. Affected by this vulnerability is an unknown fu…
    CVE-2025-57638 (CVSS 7.5) — Buffer overflow vulnerability in Tenda AC9 1.0 via the user supplied sys.vendor configuration value.…
    CVE-2025-57639 (CVSS 6.5) — OS Command injection vulnerability in Tenda AC9 1.0 was discovered to contain a command injection vulnerabilit…
    CVE-2025-10443 (CVSS 7.4) — A vulnerability was identified in Tenda AC9 and AC15 15.03.05.14/15.03.05.18. This vulnerability affects the f…
    CVE-2025-10442 (CVSS 2.1) — A vulnerability was determined in Tenda AC9 and AC15 15.03.05.14. This affects the function formexeCommand of …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High