CVE-2021-46010

HIGHNVD 8.88.8—

8.8

Totolink A3100R V5.9c.4577 suffers from Use of Insufficiently Random Values via the web configuration. The SESSION_ID is predictable. An attacker can hijack a valid session and conduct further malicious operations.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 75.4%
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/Ynwm8NnQSiK0xm7QKuNteg
af854a3a-2127-422b-91ae-364da2661108http://a3100r.com
af854a3a-2127-422b-91ae-364da2661108http://totolink.com
af854a3a-2127-422b-91ae-364da2661108https://hackmd.io/Ynwm8NnQSiK0xm7QKuNteg

Weakness Classification(1)

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

CWE-330Use of Insufficiently Random Values

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-2021-46010?

CVE-2021-46010 is a high vulnerability published on March 30, 2022. Totolink A3100R V5.9c.4577 suffers from Use of Insufficiently Random Values via the web configuration. The SESSION_ID is predictable. An attacker can hijack a valid session and conduct further malicious operations.

When was CVE-2021-46010 disclosed?

CVE-2021-46010 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-2021-46010 actively exploited?

CVE-2021-46010 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 75.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-46010?

CVE-2021-46010 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2021-46010?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-46010, 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-2021-46010

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-46010?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (6)

Frequently asked(5)

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