What is CVE-2026-82597?

CVE-2026-82597 is a high-severity vulnerability in Totolink Nr1800x, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.4/10. Published 2026-08-31.

How severe is CVE-2026-82597?

High severity. CVSS v3 base score is 7.4 out of 10.

RCE in Totolink Nr1800x

CVE-2026-82597

A vulnerability was identified in TOTOLINK NR1800X 9.1.0u.6681_B20230703. This affects the function setUssd of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ussd leads to command injection. The attack can be initiated remotely. The exploit is publicly available and might be used.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L.

Affected products

Totolink Nr1800x — versions 9.1.0u.6681_B20230703

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-82597?: CVE-2026-82597 is a high-severity vulnerability in Totolink Nr1800x, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.4/10. Published 2026-08-31.
How severe is CVE-2026-82597?: High severity. CVSS v3 base score is 7.4 out of 10.