Buffer overflow in Totolink Nr1800x
CVE-2026-1328
A vulnerability was detected in Totolink NR1800X 9.1.0u.6279_B20210910. Impacted is the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Performing a manipulation of the argument ssid results in buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (56.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.001
Affected products
- Totolink Nr1800x — versions 9.1.0u.6279_B20210910
- Totolink Nr1800x Firmware — versions 9.1.0u.6279_b20210910
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setWizardCfg-2e453a41781f8056… (Exploit, Third Party Advisory, exploit)
- www.totolink.net/ (Product, product)
Frequently asked questions
- What is CVE-2026-1328?
- CVE-2026-1328 is a high-severity vulnerability in Totolink Nr1800x, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-01-22.
- How severe is CVE-2026-1328?
- High severity. CVSS v3 base score is 8.8 out of 10.