CVE-2026-92454 — MEDIUM (6.1)

Vulnerability 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.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

HIGH

Related Weaknesses (CWE)

CWE-125 CWE-835

References

https://github.com/eclipse-threadx/guix/security/advisories/GHSA-pppm-h3g4-986x

FAQ

What is CVE-2026-92454?

CVE-2026-92454 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 im...

How severe is CVE-2026-92454?

CVE-2026-92454 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-92454?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.