CVE-2022-40111
CWE-798Published: September 6, 2022· Updated: Jun 17, 2026
Official Description
In TOTOLINK A3002R TOTOLINK-A3002R-He-V1.1.1-B20200824.0128 in the shadow.sample file, root is hardcoded in the firmware.
Risk Analysis
The TOTOLINK A3002R firmware contains a hardcoded root account in a configuration file. This critical flaw allows for full system compromise and is remotely exploitable with low complexity.
There is no known public exploit for this vulnerability, and it is not currently listed in the CISA KEV catalog.
Users should check for and apply the latest firmware updates provided by TOTOLINK to address this security oversight.
Technical Analysis
CVE-2022-40111 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-798)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-40111 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts