--- title: "CVE-2026-103414: GUIX - Buffer Overflow" description: "GUIX contains a buffer overflow caused by improper validation of gx_page_header_data_size during binary resource theme loading, letting attackers write past allocated memory, exploit requires crafted resource file." url: https://panop.io/threat-heartbeat/CVE-2026-103414/ --- # CVE-2026-103414 GUIX - Buffer Overflow GUIX contains a buffer overflow caused by improper validation of gx\_page\_header\_data\_size during binary resource theme loading, letting attackers write past allocated memory, exploit requires crafted resource file. CVSS base score 8.4 /10 High CISA KEV Not listed Public exploit None known Authentication Not required [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-103414) ## Details Type Buffer Overflow Impact Remote Code Execution, Denial Of Service CVSS vector CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Published 14 October 2026 Updated 15 October 2026 Weakness [CWE-787](https://cwe.mitre.org/data/definitions/787.html) ## Vendor fix Update to the latest version with fixed gx\_page\_header\_data\_size validation. 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-2026-103414](https://nvd.nist.gov/vuln/detail/CVE-2026-103414) - [https://github.com/eclipse-threadx/guix/security/advisories/GHSA-m2f3-cv9x-68q7](https://github.com/eclipse-threadx/guix/security/advisories/GHSA-m2f3-cv9x-68q7) - [https://gitlab.eclipse.org/security/cve-assignment/-/work\_items/358](https://gitlab.eclipse.org/security/cve-assignment/-/work_items/358) [← 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)