CVE-2026-31173

MEDIUMNVD 6.56.5—Elevated

6.5

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.

CVSS v3: 6.5
EG Score: 6.5(high)
EPSS: 52.2%
KEV: Not listed

Published

April 23, 2026

Last Modified

April 27, 2026

References (2)

cve@mitrehttps://github.com/Svigo-o/TOTOLINK-Vul/tree/main/totolink-a3300r-interval-cmd-injection
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/Svigo-o/TOTOLINK-Vul/tree/main/totolink-a3300r-interval-cmd-injection

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-77Command Injection

Data Freshness Timeline

(refreshed 17× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2026-31173?

CVE-2026-31173 is a medium vulnerability published on April 23, 2026. 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.

When was CVE-2026-31173 disclosed?

CVE-2026-31173 was first published in the National Vulnerability Database on April 23, 2026, with the most recent update on April 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-31173 actively exploited?

CVE-2026-31173 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-31173?

CVE-2026-31173 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2026-31173?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31173, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2026-31173

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-31173?

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Published

Last Modified

References (2)

Frequently asked(5)

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