CVE-2026-77945: Command Injection in TRENDnet TEW-821DAP
CVE-2026-77945 is a command injection vulnerability in the TRENDnet TEW-821DAP router, specifically in the /cgi-bin/upload.cgi file's ssi component. The vulnerability arises from improper handling of the filename argument, allowing remote attackers to execute arbitrary commands. The affected version is 2.2.01b05. The vulnerability has a medium severity with a CVSS score of 5.3. No official patch or remediation guidance is currently available, and no known exploits are reported in the wild.
AI Analysis
Technical Summary
This vulnerability in TRENDnet TEW-821DAP version 2.2.01b05 involves command injection via manipulation of the filename argument in the /cgi-bin/upload.cgi file within the ssi component. Remote attackers can exploit this flaw to execute arbitrary commands on the device. The vulnerability has been publicly disclosed, but no vendor-provided fix or mitigation details are available at this time.
Potential Impact
Successful exploitation could allow remote attackers to execute arbitrary commands on the affected device, potentially leading to unauthorized control or disruption of the device's operation. However, the CVSS score of 5.3 indicates a medium impact, and no active exploitation in the wild has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting access to the affected device's management interface to trusted networks only to reduce exposure.
CVE-2026-77945: Command Injection in TRENDnet TEW-821DAP
Description
CVE-2026-77945 is a command injection vulnerability in the TRENDnet TEW-821DAP router, specifically in the /cgi-bin/upload.cgi file's ssi component. The vulnerability arises from improper handling of the filename argument, allowing remote attackers to execute arbitrary commands. The affected version is 2.2.01b05. The vulnerability has a medium severity with a CVSS score of 5.3. No official patch or remediation guidance is currently available, and no known exploits are reported in the wild.
CVSS v4.0
Score 5.3medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in TRENDnet TEW-821DAP version 2.2.01b05 involves command injection via manipulation of the filename argument in the /cgi-bin/upload.cgi file within the ssi component. Remote attackers can exploit this flaw to execute arbitrary commands on the device. The vulnerability has been publicly disclosed, but no vendor-provided fix or mitigation details are available at this time.
Potential Impact
Successful exploitation could allow remote attackers to execute arbitrary commands on the affected device, potentially leading to unauthorized control or disruption of the device's operation. However, the CVSS score of 5.3 indicates a medium impact, and no active exploitation in the wild has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting access to the affected device's management interface to trusted networks only to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-21T18:41:56.089Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8982faacd9273b49ee7315
Added to database: 08/22/2026, 11:07:38 UTC
Last enriched: 08/22/2026, 11:22:09 UTC
Last updated: 08/22/2026, 11:22:09 UTC
Views: 4
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