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CVE Watch20 oct 2026

CVE-2026-92449

`_gx_binres_pixelmap_table_load()` in the GUIX binary resource (theme) loader indexes the pixelmap table with a value read verbatim from the

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 20 oct 2026 · Última mod.: 20 oct 2026 · CWE-129 · CWE-457 · CWE-787

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

`_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.

Referencias oficiales

github.comhttps://github.com/eclipse-threadx/guix/security/advisories/GHSA-m85v-2ccm-w6gf

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CVECVSSEPSSKEVRExplotTítuloVis.

CVE-2026-91189—

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