Is CVE-2023-51013 actively exploited?

No active exploitation of CVE-2023-51013 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-51013 be exploited remotely?

Yes. CVE-2023-51013 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-51013?

CVE-2023-51013 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-51013

CRITICAL

CVE-2023-51013

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 lanNetmask parameter’ of the setLanConfig interface of the cstecgi .cgi.

NVD Source

Risk Analysis

The device is susceptible to unauthorized arbitrary command execution through the lanNetmask parameter in the setLanConfig interface. The critical 9.8 CVSS score reflects the significant risk posed by this remotely exploitable, unauthenticated vulnerability.

No public exploit is known to exist, and the vulnerability is not listed in the CISA KEV.

Recommended Action

Update the TOTOLink EX1800T firmware to the latest version to patch this security issue.

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-2023-51013 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.