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TI-2021-20997 Aliases CVE-2021-46010GHSA-4q2f-j497-jmqf

Totolink A3100R V5.9c.4577 suffers from Use of Insufficiently Random Values via the web…

Priority MEDIUM 41CWE-330Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.01243 69th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:totolink:a3100r_firmware:5.9c.4577:*:*:*:*:*:*:*5.9c.4577VulnerableTOTOLINK
cpe:2.3:h:totolink:a3100r:-:*:*:*:*:*:*:*not specified by NVDRunning onTOTOLINK
  • cpe:2.3:o:totolink:a3100r_firmware:5.9c.4577:*:*:*:*:*:*:* Versions 5.9c.4577 Vulnerable ·TOTOLINK
  • cpe:2.3:h:totolink:a3100r:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TOTOLINK

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-46010
  2. 2026-10-03 Alias added: GHSA-4q2f-j497-jmqf

References

Exploit 1

  • TI-2025-20766 An issue in TOTOLINK A3100R V4.1.2cu.5247_B20211129 allows a remote attacker to execute… CVSS 3.1CRITICAL 9.8
  • TI-2025-20692 TOTOLINK A950RG V4.1.2cu.5161_B20200903 was found to contain a pre-auth remote command… CVSS 3.1CRITICAL 9.8
  • TI-2025-20691 TOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command… CVSS 3.1CRITICAL 9.8
  • TI-2025-20690 TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R… CVSS 3.1CRITICAL 9.8
  • TI-2024-28489 TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the… CVSS 3.1CRITICAL 9.8
  • TI-2024-28488 TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the… CVSS 3.1CRITICAL 9.8
See all 46 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences