CVE-2021-46008

Name: CVE-2021-46008
Creator: NVD / NIST
Published: 2022-03-30T23:15:07.863+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.19%

Last modified Jun 17, 2026

CVE-2021-46008 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In totolink a3100r V5.9c.4577, the hard-coded telnet password can be discovered from official released firmware. An attacker, who has connected to the Wi-Fi, can easily telnet into the target with root shell if the telnet is function turned on.. EPSS estimates a 1.19% chance of exploitation in the next 30 days.

Description

In totolink a3100r V5.9c.4577, the hard-coded telnet password can be discovered from official released firmware. An attacker, who has connected to the Wi-Fi, can easily telnet into the target with root shell if the telnet is function turned on.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.19%

64.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-798

Affected Software

Vendor	Product	Versions
Totolink	A3100r Firmware	5.9c.4577

References

http://a3100r.comBroken Link
http://totolink.comVendor Advisory
https://hackmd.io/ZkeEB-VvRiWBS53rFKG8DQExploit, Third Party Advisory
http://a3100r.comBroken Link
http://totolink.comVendor Advisory
https://hackmd.io/ZkeEB-VvRiWBS53rFKG8DQExploit, Third Party Advisory

Timeline

Published: Mar 30, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-46008?

How severe is CVE-2021-46008?

CVE-2021-46008 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.19% probability of exploitation in the next 30 days.

How do I fix CVE-2021-46008?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-46008?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST