CVE-2021-43664

HIGHNVD 8.18.1—

8.1

totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a command injection vulnerability via the component process forceugpo.

CVSS v3: 8.1
EG Score: 8.1(medium)
EPSS: 88.4%
KEV: Not listed

Published

March 30, 2022

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/chibataiki/iot-vuls/blob/main/totolink/command-injection2.md
af854a3a-2127-422b-91ae-364da2661108https://github.com/chibataiki/iot-vuls/blob/main/totolink/command-injection2.md

Weakness Classification(1)

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

CWE-77Command Injection

Data Freshness Timeline

(refreshed 9× in last 7d / 18× 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.

2026-06-04 13:10 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 00:44 UTCEG score recompute
2026-05-26 00:44 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-43664?

CVE-2021-43664 is a high vulnerability published on March 30, 2022. totolink EX300v2 V4.0.3c.140B20210429 was discovered to contain a command injection vulnerability via the component process forceugpo.

When was CVE-2021-43664 disclosed?

CVE-2021-43664 was first published in the National Vulnerability Database on March 30, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-43664 actively exploited?

CVE-2021-43664 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 88.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-43664?

CVE-2021-43664 has a CVSS v3 base score of 8.1 (NVD).

How do I remediate CVE-2021-43664?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43664, 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.

Dependency Blast Radius

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CVE-2021-43664

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-43664?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)