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TRENDnet TEW-821DAP CVE-2026-7608

| EUVDEUVD-2026-26767 LOW
OS Command Injection (CWE-78)
2026-05-02 VulDB
2.0
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
2.0 LOW
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

7
Analysis Generated
May 02, 2026 - 09:30 vuln.today
Severity Changed
May 02, 2026 - 09:22 NVD
MEDIUM LOW
CVSS changed
May 02, 2026 - 09:22 NVD
5.5 (MEDIUM) 2.0 (LOW)
PoC Detected
May 02, 2026 - 09:16 vuln.today
Public exploit code
EUVD ID Assigned
May 02, 2026 - 09:00 euvd
EUVD-2026-26767
Analysis Generated
May 02, 2026 - 09:00 vuln.today
CVE Published
May 02, 2026 - 08:45 nvd
LOW 2.0

DescriptionCVE.org

A vulnerability was detected in TRENDnet TEW-821DAP up to 1.12B01. The affected element is the function tools_diagnostic. The manipulation results in os command injection. The exploit is now public and may be used. The vendor explains: "That firmware version will only work on our hardware version v1.xR. We have already EOL that product 8 years ago and are no longer selling". This vulnerability only affects products that are no longer supported by the maintainer.

AnalysisAI

OS command injection in TRENDnet TEW-821DAP up to firmware version 1.12B01 allows authenticated local attackers to execute arbitrary commands via the tools_diagnostic function. The vulnerability affects only end-of-life hardware (v1.xR) discontinued 8 years ago and no longer receiving vendor support. Exploit code is publicly available, but real-world risk is severely constrained by the authentication requirement (PR:L), local network access (AV:A), and the product's obsolete status with no active install base.

Technical ContextAI

The vulnerability resides in the tools_diagnostic function within the TRENDnet TEW-821DAP wireless access point firmware. CWE-78 identifies this as a classic OS command injection flaw where user-supplied input is passed unsanitized to a shell command interpreter. The attack vector is adjacent (AV:A), meaning an attacker must be on the same network segment as the device. The affected CPE cpe:2.3:a:trendnet:tew-821dap:*:*:*:*:*:*:*:* indicates all versions up to 1.12B01 are vulnerable. The function likely constructs system commands dynamically from diagnostic parameters without proper input validation or escaping, allowing injection of pipe (|), semicolon (;), or backtick (`) characters to chain arbitrary commands.

RemediationAI

No vendor-released patch is available - TRENDnet confirmed the affected hardware (v1.xR) reached end-of-life status 8 years ago and is no longer supported. Organizations operating these devices should prioritize decommissioning and replacement with current-generation TRENDnet or alternative wireless access points. Interim compensating controls for devices that cannot be immediately retired include: (1) Restrict network access to the management interface by configuring host-based firewall rules or network segmentation - block inbound connections to the management port (typically HTTP/HTTPS, port 80/443) except from authorized administrative subnets; (2) Change default or weak administrative credentials to strong, unique passwords and disable remote management features if supported; (3) Physically isolate the device on a dedicated VLAN with restricted ingress/egress rules, preventing lateral movement from compromised client devices. Note these controls do not eliminate the vulnerability but reduce the likelihood of exploitation by authenticated attackers with network adjacency.

CVE-2026-77946 CRITICAL POC
9.3 Aug 22

Stack-based buffer overflow in the TRENDnet TEW-821DAP (firmware 2.2.01b05) wireless access point allows attackers reach

CVE-2026-15484 HIGH
8.7 Jul 12

Buffer overflow in the TRENDnet TEW-821DAP (firmware 1.12B01) wireless access point lets an authenticated remote attacke

CVE-2026-15483 HIGH
8.7 Jul 12

Buffer overflow in the TRENDnet TEW-821DAP (v1.0R, firmware 1.12B01) dual-band access point lets an authenticated remote

CVE-2026-7607 HIGH
8.7 May 02

Remote authenticated attackers can execute arbitrary code on TRENDnet TEW-821DAP v1.xR hardware running firmware 1.12B01

CVE-2026-77945 LOW POC
2.1 Aug 22

Command injection in TRENDnet TEW-821DAP 2.2.01b05 allows remote low-privileged attackers to execute arbitrary OS comman

CVE-2026-76582 LOW POC
2.1 Aug 19

Command injection in TRENDnet TEW-821DAP firmware 2.2.01b05 allows authenticated remote attackers to execute arbitrary O

CVE-2026-7611 MEDIUM
6.3 May 02

Insufficient verification of firmware authenticity in TRENDnet TEW-821DAP up to version 1.12B01 allows remote attackers

CVE-2026-7606 MEDIUM
6.3 May 02

Insufficient verification of data authenticity in the firmware update handler of TRENDnet TEW-821DAP 1.12B01 allows remo

CVE-2026-7609 LOW POC
2.1 May 02

OS command injection in TRENDnet TEW-821DAP firmware up to version 1.12B01 allows authenticated remote attackers to exec

CVE-2026-15486 MEDIUM
5.3 Jul 12

OS command injection in TRENDnet TEW-821DAP firmware 1.11B03 allows a network-adjacent authenticated attacker to execute

CVE-2026-15485 MEDIUM
5.3 Jul 12

OS command injection in the TRENDnet TEW-821DAP 1.11B03 wireless access point allows authenticated remote attackers to e

CVE-2026-7610 LOW
2.9 May 02

TRENDnet TEW-821DAP firmware version 1.12B01 transmits sensitive information in cleartext via the /www/cgi/ssi endpoint

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CVE-2026-7608 vulnerability details – vuln.today

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