An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the hour parameter to /cgi-bin/cstecgi.cgi.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Apr 23, 2026 · NIST NVD

   Detected

   An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the hour parameter to /cgi-bin/cstecgi.cgi.

2. Jun 17, 2026 · NIST NVD

   Updated

   An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the hour parameter to /cgi-bin/cstecgi.cgi.

Affected

• cpe totolink/a3300r firmware17.0.0cu.557_b20221024

Sources

• CVE.orgVulnerability recordCVE-2026-31166

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-31166

  An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the hour parameter to /cgi-bin/cstecgi.cgi.

  nvd.nist.gov

References

• Exploit · github.com