Vulnerability Description
`_gx_binres_pixelmap_table_load()` in the GUIX binary resource (theme) loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A crafted theme drives a write of up to roughly 256 KB past the end of the table. The overflowed buffer is allocated by GUIX itself, through `_gx_system_memory_allocator`, rather than supplied by the caller, so the loader corrupts its own arena. The public API `gx_binres_theme_load()` takes no size parameter, so no amount of caller diligence prevents this. Reproduces in the shipped default configuration; `GX_BINARY_RESOURCE_SUPPORT` is enabled by default.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-92449?
CVE-2026-92449 is a documented vulnerability. `_gx_binres_pixelmap_table_load()` in the GUIX binary resource (theme) loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A...
How severe is CVE-2026-92449?
CVSS scoring is not yet available for CVE-2026-92449. Check NVD for updates.
Is there a patch for CVE-2026-92449?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.