All vulnerabilities
CVE-2026-92449GHSA-m85v-2ccm-w6gf

Binary resource loader: unbounded map_id from a theme file causes a heap out-of-bounds write in the GUIX-allocated arena

Eclipse Foundation Eclipse ThreadX - GUIX
Open in ThreatlineRecord JSON
CVSS
6.8Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.16%Chance of exploitation activity in the next 30 days, higher than 4% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published20 Oct 2026Updated 20 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 2

  • Eclipse ThreadX - GUIXaffected: 6.3.0 through 6.5.1.202602aCVE List
  • Eclipse ThreadX - GUIXunaffected: 6.5.2.202603CVE List

References 1