CVE-2026-82616

CRITICAL 9.9

TOTOLINK NR1800X cstecgi.cgi setUploadSetting stack-based overflow

CVSS Score

9.9

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121 CWE-119
Vendor	totolink
Product	nr1800x
Published	Aug 31, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

TOTOLINK / NR1800X

9.1.0u.6681_B20230703

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/397117 vuldb.com: https://vuldb.com/vuln/397117/cti vuldb.com: https://vuldb.com/cve/CVE-2026-82616 vuldb.com: https://vuldb.com/submit/892941 github.com: https://github.com/lxiansheng488-bit/-/blob/main/TOTOlink/totolink%20setUploadSetting%E6%A0%88%E6%BA%A2%E5%87%BA.pdf totolink.net: https://www.totolink.net/

Credits

🔍 577488768 (VulDB User)