--- title: "CVE-2026-28763: TOTOLINK X2000R - Buffer Overflow" description: "TOTOLINK X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 contains a stack-based buffer overflow caused by improper handling in boa formMapDelDevice hostname functionality, letting authenticated attackers execute arbitrary code remotely, exploit requires authentication." url: https://panop.io/threat-heartbeat/CVE-2026-28763/ --- # CVE-2026-28763 TOTOLINK X2000R - Buffer Overflow TOTOLINK X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 contains a stack-based buffer overflow caused by improper handling in boa formMapDelDevice hostname functionality, letting authenticated attackers execute arbitrary code remotely, exploit requires authentication. CVSS base score 9.1 /10 Critical CISA KEV Not listed Public exploit None known Authentication Required [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-28763) ## Details Type Buffer Overflow Impact Remote Code Execution CVSS vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Published 20 October 2026 Updated 21 October 2026 Weakness [CWE-121](https://cwe.mitre.org/data/definitions/121.html) ## Vendor fix Update to the latest version or a version that patches this vulnerability. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-28763](https://nvd.nist.gov/vuln/detail/CVE-2026-28763) - [https://talosintelligence.com/vulnerability\_reports/TALOS-2026-2389](https://talosintelligence.com/vulnerability_reports/TALOS-2026-2389) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)