PT-2026-83697 · Totolink · Nr1800X

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CVE-2026-82616

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Published

2026-08-31

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Updated

2026-08-31

CVSS v3.1

9.9

Critical

VectorAV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions TOTOLINK NR1800X version 9.1.0u.6681 B20230703
Description A stack-based buffer overflow occurs when the FileName argument is manipulated within the setUploadSetting() function of the '/cgi-bin/cstecgi.cgi' endpoint. This issue allows for remote execution of the attack.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict access to the '/cgi-bin/cstecgi.cgi' endpoint to minimize the risk of exploitation.

Exploit

Buffer Overflow

Stack Overflow

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Weakness Enumeration

Related Identifiers

CVE-2026-82616

Affected Products

Nr1800X