High severity · published Jul 21, 2026
CVE-2026-16243
Eclipse OMR : arraycmp SIMD implementation does not check if the number of bytes to compare is zero
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EO
Eclipse OMR · Eclipse Foundation
0.1 before 0.11 · source: vendor
OM
Omr · Eclipse
0.1.0 through 0.10.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-16243
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-16243
Issue Tracking
https://github.com/eclipse-omr/omr/pull/8348
Issue Tracking
https://github.com/eclipse-omr/omr/pull/8349
Broken Link
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/195