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CRITICAL

CVE-2026-51736

CVSS v3

9.1

CRITICAL

EPSS Score

0.5 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Incorrect access control in the clearSyslog function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to erase system logs via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Technical details

Published
2026-08-31
Last Modified
2026-09-01

Frequently asked questions

What is CVE-2026-51736?

Incorrect access control in the clearSyslog function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to erase system logs via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

Is CVE-2026-51736 actively exploited?

Active exploitation of CVE-2026-51736 has not been confirmed. Its EPSS score was 0.5% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-51736?

CVE-2026-51736 has a CVSS v3 base score of 9.1 (CRITICAL severity).

Is CVE-2026-51736 affecting your environment?

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