Command Injection Vulnerability in TRENDnet TEW-755AP Wireless Access Point
CVE-2026-76591

5.3MEDIUM

Key Information:

Vendor

Trendnet

Status
Tew-755ap
Vendor
CVE Published:
19 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-76591?

A security flaw has been identified in the TRENDnet TEW-755AP wireless access point, specifically impacting the 'log_email_server' functionality within the '/cgi-bin/email.cgi' component, identified as 'ssi'. This vulnerability allows attackers to execute arbitrary commands on the device remotely, leading to potential unauthorized access and control. The exploit code has been publicly released, increasing the risk of active attacks targeting this vulnerability, thus highlighting the necessity for users to update their systems promptly to mitigate the associated risks.

Affected Version(s)

TEW-755AP 20260702

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-76591 - Proof of Concept

References

https://vuldb.com/vuln/393088
vdb-entrytechnical-description
https://vuldb.com/vuln/393088/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-76591
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

fuhanhan2015 (VulDB User)
.