Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formFilter functionality of X2000R (version(s):… (CVE-2026-9660)
Description
Multiple stack-based buffer overflow vulnerabilities exist in the boa formFilter functionality of TOTOLINK X2000R firmware version TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. These vulnerabilities can be triggered by an authenticated HTTP request manipulating the vpnPassword parameter, potentially allowing arbitrary code execution. The vulnerabilities have a critical severity with a CVSS score of 9.1.
CVSS v3.1
Score 9.1critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9660 describes multiple exploitable stack-based buffer overflow vulnerabilities in the boa formFilter functionality of the TOTOLINK X2000R device firmware version TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. An attacker with authentication privileges can send a specially crafted HTTP request targeting the vpnPassword parameter to trigger these overflows, which may lead to arbitrary code execution. The vulnerabilities are classified under CWE-121 (stack-based buffer overflow) and have a CVSS v3.1 score of 9.1, indicating critical impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an authenticated attacker to execute arbitrary code on the affected device, potentially compromising confidentiality, integrity, and availability of the system. This could lead to full control over the device.
Mitigation Recommendations
No patch or official fix information is currently available. Since the vulnerability requires authenticated HTTP requests, restricting access to the management interface and monitoring for suspicious authenticated activity may reduce risk. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-5v52-r4w9-96c8
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-9660"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
Threat ID: 6ad7ec102cdf04f6566aefad
Added to database: 10/20/2026, 22:32:48 UTC
Last enriched: 10/20/2026, 22:35:12 UTC
Last updated: 10/21/2026, 00:08:26 UTC
Views: 3
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