CVE-2026-31173 — ToToLink A3300R Firmware Vulnerability
CVE-2026-31173 — An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the interval parameter to /cgi-bin/cstecgi.cgi.
What This Means For You
- If your environment is affected by CWE-77, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-31173 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-31173 - ToToLink A3300R CGI Command Injection
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-31173 | vulnerability | CVE-2026-31173 |
| CWE-77 | weakness | CWE-77 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 23, 2026 at 22:17 UTC |
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