TI-2021-20993 Aliases CVE-2021-46006 GHSA-34v3-w4c4-qr24

In Totolink A3100R V5.9c.4577, "test.asp" contains an API-like function, which is not…

LOW 37CWE-306Published 2022-03-30 · Updated 2026-07-09

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-306.

Summary

In Totolink A3100R V5.9c.4577, "test.asp" contains an API-like function, which is not authenticated. Using this function, an attacker can configure multiple settings without authentication.

Why it matters now

EPSS 0.05503 92nd 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

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:totolink:a3100r_firmware:5.9c.4577:::::::*	5.9c.4577	Vulnerable	TOTOLINK
cpe:2.3:h:totolink:a3100r:-:::::::*	not specified by NVD	Running on	TOTOLINK

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

2026-10-02 Threatist record created from CVE-2021-46006
2026-10-03 Alias added: GHSA-34v3-w4c4-qr24

References

Exploit 1

https://hackmd.io/vS-OfUEzSqqKh8e1PKce5A

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