CVE-2021-46009

CRITICALNVD 9.89.8—

9.8

In Totolink A3100R V5.9c.4577, multiple pages can be read by curl or Burp Suite without authentication. Additionally, admin configurations can be set without cookies.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 77.9%
KEV: Not listed

Published

March 30, 2022

Last Modified

November 21, 2024

References (6)

cve@mitrehttp://a3100r.com
cve@mitrehttp://totolink.com
cve@mitrehttps://hackmd.io/-riYp6Q-ReCx-dKKWFBTLg
af854a3a-2127-422b-91ae-364da2661108http://a3100r.com
af854a3a-2127-422b-91ae-364da2661108http://totolink.com
af854a3a-2127-422b-91ae-364da2661108https://hackmd.io/-riYp6Q-ReCx-dKKWFBTLg

Weakness Classification(1)

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

CWE-306Missing Authentication for Critical Function

Data Freshness Timeline

(refreshed 11× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 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 13:42 UTCepss_batch
2026-05-26 13:42 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-2021-46009?

CVE-2021-46009 is a critical vulnerability published on March 30, 2022. In Totolink A3100R V5.9c.4577, multiple pages can be read by curl or Burp Suite without authentication. Additionally, admin configurations can be set without cookies.

When was CVE-2021-46009 disclosed?

CVE-2021-46009 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-2021-46009 actively exploited?

CVE-2021-46009 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 77.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-46009?

CVE-2021-46009 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-46009?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-46009, 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-2021-46009

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-46009?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)