Is CVE-2023-51011 actively exploited?

No active exploitation of CVE-2023-51011 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-51011 be exploited remotely?

Yes. CVE-2023-51011 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-51011?

CVE-2023-51011 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-51011

NVD-CWE-noinfoPublished: December 22, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

TOTOlink EX1800T v9.1.0cu.2112_B20220316 is vulnerable to unauthorized arbitrary command execution in the lanPriDns parameter’ of the setLanConfig interface of the cstecgi .cgi

NVD Source

Risk Analysis

This vulnerability permits unauthorized arbitrary command execution through the lanPriDns parameter in the setLanConfig interface. The critical 9.8 CVSS score indicates a high-risk scenario where remote, unauthenticated attackers can execute commands.

There is no public exploit known, and the vulnerability is not included in the CISA KEV.

Recommended Action

Update the device firmware to the latest version to resolve this security vulnerability.

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-2023-51011 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.