CVE-2022-28493
NVD-CWE-noinfoPublished: March 23, 2023· Updated: Jun 17, 2026
Official Description
A vulnerability in TOTOLINK CP900 V6.3c.566 allows attackers to start the Telnet service,
Risk Analysis
This vulnerability in the TOTOLINK CP900 allows an unauthenticated attacker to remotely enable the Telnet service. Given the critical CVSS score of 9.8, this flaw poses a significant risk as it provides a pathway for unauthorized remote access to the device.
There is no known public exploit for this vulnerability, and it is not currently listed in the CISA KEV catalog. It is remotely exploitable with low attack complexity.
Users should update the TOTOLINK CP900 firmware to a version that addresses this vulnerability. Additionally, disable Telnet and use secure protocols like SSH if available.
Technical Analysis
CVE-2022-28493 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
All References (2)
Quick Facts
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-28493 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts