CVE-2026-92454
JPEG decoder: truncated segments are read past the image buffer, and a zero sampling factor hangs the decode
- State
- Published
- Severity
- 6.8 Medium
- Published
- Oct 20, 2026
- Updated
- Oct 20, 2026
- Reserved
- Sep 23, 2026
Description
The GUIX software JPEG decoder reads four kinds of marker segment without checking that each is long enough to hold what it reads. A truncated segment is therefore read past the end of the caller's image buffer. Separately, a zero chroma sampling factor makes the block decode loop non-terminating. Both reproduce in the default configuration, in which `GX_SOFTWARE_DECODER_SUPPORT` is enabled.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N | eclipse |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H | eclipse |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Eclipse ThreadX - GUIXEclipse Foundation |
|
References
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