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CRITICAL

CVE-2026-82616

CVSS v3

9.9

CRITICAL

EPSS Score

0.9 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A vulnerability was found in TOTOLINK NR1800X 9.1.0u.6681_B20230703. Impacted is the function setUploadSetting of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used.

Technical details

Published
2026-08-31
Last Modified
2026-08-31

Frequently asked questions

What is CVE-2026-82616?

A vulnerability was found in TOTOLINK NR1800X 9.1.0u.6681_B20230703. Impacted is the function setUploadSetting of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument FileName results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used.

Is CVE-2026-82616 actively exploited?

Active exploitation of CVE-2026-82616 has not been confirmed. Its EPSS score was 0.9% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-82616?

CVE-2026-82616 has a CVSS v3 base score of 9.9 (CRITICAL severity).

Is CVE-2026-82616 affecting your environment?

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