CVE-2026-76589: Stack-based Buffer Overflow in TRENDnet TEW-755AP
CVE-2026-76589 is a critical stack-based buffer overflow vulnerability in the TRENDnet TEW-755AP device, specifically in the function FUN_401000 within /sbin/mycli. The vulnerability arises from improper handling of the ssid argument, allowing remote attackers to trigger the overflow. Exploit code has been publicly disclosed, increasing the risk of exploitation. No patch or remediation information is currently provided.
AI Analysis
Technical Summary
This vulnerability affects TRENDnet TEW-755AP devices up to version 20260702. The flaw is located in the function FUN_401000 of the /sbin/mycli binary, where manipulation of the ssid argument leads to a stack-based buffer overflow. The vulnerability can be exploited remotely without user interaction or privileges, as indicated by the CVSS vector. Public exploit code is available, but no official patch or fix has been documented in the provided data.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code on the affected device due to the stack-based buffer overflow. The CVSS 4.0 score of 9.4 (critical) reflects the high impact, including high exploitability and potential for significant compromise of the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider limiting remote access to the affected device and monitoring for exploit attempts. No vendor advisory or patch links are provided in the current data.
CVE-2026-76589: Stack-based Buffer Overflow in TRENDnet TEW-755AP
Description
CVE-2026-76589 is a critical stack-based buffer overflow vulnerability in the TRENDnet TEW-755AP device, specifically in the function FUN_401000 within /sbin/mycli. The vulnerability arises from improper handling of the ssid argument, allowing remote attackers to trigger the overflow. Exploit code has been publicly disclosed, increasing the risk of exploitation. No patch or remediation information is currently provided.
CVSS v4.0
Score 9.4critical
Affected software
TRENDnet
TEW-755AP
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects TRENDnet TEW-755AP devices up to version 20260702. The flaw is located in the function FUN_401000 of the /sbin/mycli binary, where manipulation of the ssid argument leads to a stack-based buffer overflow. The vulnerability can be exploited remotely without user interaction or privileges, as indicated by the CVSS vector. Public exploit code is available, but no official patch or fix has been documented in the provided data.
Potential Impact
Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary code on the affected device due to the stack-based buffer overflow. The CVSS 4.0 score of 9.4 (critical) reflects the high impact, including high exploitability and potential for significant compromise of the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider limiting remote access to the affected device and monitoring for exploit attempts. No vendor advisory or patch links are provided in the current data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-19T14:37:56.616Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a862263acd9273b49a704d1
Added to database: 08/19/2026, 21:38:43 UTC
Last enriched: 09/11/2026, 03:16:47 UTC
Last updated: 10/03/2026, 14:46:10 UTC
Views: 149
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