Out-of-bounds Read in Eclipse Omr

CVE-2026-16243

In Eclipse OMR versions up to 0.11, the arraycmp SIMD implementation for Z and P does not check if the number of bytes to compare is zero.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (29.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Eclipse Omr
Eclipse Foundation Omr — versions 0.1, 0, 0.11

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

emo@eclipse.org (Patch, Issue Tracking)
emo@eclipse.org (Patch, Issue Tracking)
emo@eclipse.org (Broken Link)

Frequently asked questions

What is CVE-2026-16243?: CVE-2026-16243 is a high-severity vulnerability in Eclipse Omr, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2026-07-21.
How severe is CVE-2026-16243?: High severity. CVSS v3 base score is 7.5 out of 10.