CVE-2026-9660 in Totolink

Summary

by MITRE • 10/21/2026

Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formFilter functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability deals with the vpnPassword parameter.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

• Responsible: Talos
• Reservation: 05/26/2026
• Disclosure: 10/21/2026
• Moderation: accepted
• Entry: VDB-424075
• CPE: 20261021
• CWE: CWE-121 (confirmed)
• CVSS: 9.1 (CNA)
• EPSS: 0.00000
• KEV: no
• Activities: very low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-9660
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9660
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-9660/