CVE-2021-46010

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 HIGH
CVSS v2.0 6.5 MEDIUM

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://hackmd.io/Ynwm8NnQSiK0xm7QKuNteg	Exploit Third Party Advisory
https://hackmd.io/Ynwm8NnQSiK0xm7QKuNteg	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:a3100r_firmware:5.9c.4577:*:*:*:*:*:*:*

cpe:2.3:h:totolink:a3100r:-:*:*:*:*:*:*:*

History

09 Jul 2026, 01:17

Type	Values Removed	Values Added
References	~~{'url': 'http://a3100r.com', 'tags': ['Broken Link'], 'source': 'af854a3a-2127-422b-91ae-364da2661108'}~~ ~~{'url': 'http://totolink.com', 'tags': ['Vendor Advisory'], 'source': 'af854a3a-2127-422b-91ae-364da2661108'}~~

21 Nov 2024, 06:33

Type	Values Removed	Values Added
References	~~() http://a3100r.com - Broken Link~~	() http://a3100r.com - Broken Link
References	~~() http://totolink.com - Vendor Advisory~~	() http://totolink.com - Vendor Advisory
References	~~() https://hackmd.io/Ynwm8NnQSiK0xm7QKuNteg - Exploit, Third Party Advisory~~	() https://hackmd.io/Ynwm8NnQSiK0xm7QKuNteg - Exploit, Third Party Advisory

Information

Published : 2022-03-30 23:15

Updated : 2026-07-09 01:17

NVD link : CVE-2021-46010

Mitre link : CVE-2021-46010

CVE.ORG link : CVE-2021-46010

JSON object : View

Products Affected

totolink

a3100r
a3100r_firmware

CWE

CWE-330

Use of Insufficiently Random Values

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