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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.018 (78.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.018 · change: +0.007
Affected products
- Totolink Nr1800x — versions 9.1.0u.6681_B20230703
Weakness classification (CWE)
References
- vuldb.com/vuln/397092 (technical-description, vdb-entry)
- vuldb.com/vuln/397092/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-82597 (third-party-advisory)
- vuldb.com/submit/892696 (third-party-advisory)
- github.com/lxiansheng488-bit/-/blob/main/TOTOlink/totolink setuuid命令注入.pdf (exploit)
- www.totolink.net/ (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.