CVE-2026-42023

Stack-based buffer overflow in Totolink X2000R static IPv6 configuration allows remote code execution

Published Oct 20, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Description
Multiple stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup static network configuration functionality of Totolink X2000R 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 concerns the static_ipv6 parameter.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Totolink
Totolink x2000r
Vendors & Products Totolink
Totolink x2000r
Type Values Removed Values Added
Title Stack-based buffer overflow in Totolink X2000R static IPv6 configuration allows remote code execution
Type Values Removed Values Added
Description Multiple stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup static network configuration functionality of Totolink X2000R 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 concerns the static_ipv6 parameter.
Weaknesses CWE-121
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
talos
Published
Updated
Oct 23, 2026, 10:07 PM
Reserved
Apr 23, 2026, 2:17 PM
Status
Deferred
Published
Oct 20, 2026, 9:17 PM
Modified
Oct 23, 2026, 11:17 PM