CVE-2021-46008

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.

CVSS v3.1

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

CVSS v2.0

7.9 HIGHAV:A/AC:M/Au:N/C:C/I:C/A:C

EPSS

0.92% chance of exploitation in the next 30 days, 58th percentile

Published

2022-03-30

Updated

2026-07-09

Proof-of-concept exploits (1)

• https://hackmd.io/ZkeEB-VvRiWBS53rFKG8DQ

References

• CVE Record
• NVD entry

Related

• CVE-2021-46007
• CVE-2021-46009
• CVE-2021-46006
• CVE-2021-46010
• CVE-2021-46005
• CVE-2021-46013