CVE-2022-35491
CWE-798Published: August 10, 2022· Updated: Jun 17, 2026
Official Description
TOTOLINK A3002RU V3.0.0-B20220304.1804 has a hardcoded password for root in /etc/shadow.sample.
Risk Analysis
The Totolink A3002RU contains a hardcoded root password within a sample configuration file. This critical vulnerability allows an unauthenticated remote attacker to gain full administrative control over the device.
No public exploit is currently known, and the vulnerability is not in the CISA KEV. It is remotely exploitable with low attack complexity.
Update the device firmware to a version that removes the hardcoded credentials and ensure default passwords are changed.
Technical Analysis
CVE-2022-35491 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-2022-35491 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts