HOMEVULNERABILITIESCVE-2022-28493
CRITICAL

CVE-2022-28493

NVD-CWE-noinfoPublished: March 23, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A vulnerability in TOTOLINK CP900 V6.3c.566 allows attackers to start the Telnet service,

NVD Source

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.

Recommended Action

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.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

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

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

totolink2 product(s)
cp900 firmwarecp900
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (2)

Quick Facts

CVE IDCVE-2022-28493
CVSS Score9.8 / 10
SeverityCRITICAL
CISA KEVNo
Affected1 vendor(s)
PublishedMar 23, 2023

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
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.