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NVD / CVE Program· CNA eclipse

CVE-2026-16243: Eclipse OMR : arraycmp SIMD implementation does not check if the number of bytes to compare is zero

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.52% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. Special conditions such as timing or configuration are required.
  • Fixed version: java-21-ibm-semeru-certified-jdk (Red Hat:enterprise_linux_eus:10.0) 1:21.0.12.0.8-1.el10_0; java-21-ibm-semeru-certified-jdk-headless (Red Hat:enterprise_linux_eus:10.0) 1:21.0.12.0.8-1.el10_0; java-21-ibm-semeru-certified-jdk (Red Hat:enterprise_linux:10.2) 1:21.0.12.0.8-2.el10_2.

Low priority for now. Upgrade to java-21-ibm-semeru-certified-jdk (Red Hat:enterprise_linux_eus:10.0) 1:21.0.12.0.8-1.el10_0; java-21-ibm-semeru-certified-jdk-headless (Red Hat:enterprise_linux_eus:10.0) 1:21.0.12.0.8-1.el10_0; java-21-ibm-semeru-certified-jdk (Red Hat:enterprise_linux:10.2) 1:21.0.12.0.8-2.el10_2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.7 · v4.0—No exploit Fix available
Published
Jul 21, 2026
Updated
Oct 24, 2026
EPSS
0.5% · 43th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · eclipse
5.7
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-16243

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
eclipseomr

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • eclipse omr0.1.0 and later · up to 0.10.0 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (eclipse). Independent of NVD's CPE analysis and usually ahead of it.

  • Eclipse Foundation Eclipse OMR

    • 0.11not affected
    • 0.1 and later · before 0.11affected
    • before 0.1not affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Red Hat:enterprise_linux_eus:10.0java-21-ibm-semeru-certified-jdkbefore 1:21.0.12.0.8-1.el10_01:21.0.12.0.8-1.el10_0
Red Hat:enterprise_linux_eus:10.0java-21-ibm-semeru-certified-jdk-headlessbefore 1:21.0.12.0.8-1.el10_01:21.0.12.0.8-1.el10_0
Red Hat:enterprise_linux:10.2java-21-ibm-semeru-certified-jdkbefore 1:21.0.12.0.8-2.el10_21:21.0.12.0.8-2.el10_2
Red Hat:enterprise_linux:10.2java-21-ibm-semeru-certified-jdk-develbefore 1:21.0.12.0.8-2.el10_21:21.0.12.0.8-2.el10_2
Red Hat:enterprise_linux:10.2java-21-ibm-semeru-certified-jdk-headlessbefore 1:21.0.12.0.8-2.el10_21:21.0.12.0.8-2.el10_2
Red Hat:enterprise_linux:10.2java-21-ibm-semeru-certified-jdk-jmodsbefore 1:21.0.12.0.8-2.el10_21:21.0.12.0.8-2.el10_2
Red Hat:enterprise_linux:10.2java-21-ibm-semeru-certified-jdk-srcbefore 1:21.0.12.0.8-2.el10_21:21.0.12.0.8-2.el10_2
Red Hat:enterprise_linux:8::supplementaryjava-1.8.0-ibmbefore 1:1.8.0.8.70-1.el8_101:1.8.0.8.70-1.el8_10
Red Hat:enterprise_linux:8::supplementaryjava-1.8.0-ibm-demobefore 1:1.8.0.8.70-1.el8_101:1.8.0.8.70-1.el8_10
Red Hat:enterprise_linux:8::supplementaryjava-1.8.0-ibm-develbefore 1:1.8.0.8.70-1.el8_101:1.8.0.8.70-1.el8_10
Red Hat:enterprise_linux:8::supplementaryjava-1.8.0-ibm-headlessbefore 1:1.8.0.8.70-1.el8_101:1.8.0.8.70-1.el8_10
Red Hat:enterprise_linux:8::supplementaryjava-1.8.0-ibm-jdbcbefore 1:1.8.0.8.70-1.el8_101:1.8.0.8.70-1.el8_10
Red Hat:enterprise_linux:8::supplementaryjava-1.8.0-ibm-pluginbefore 1:1.8.0.8.70-1.el8_101:1.8.0.8.70-1.el8_10
Red Hat:enterprise_linux:8::supplementaryjava-1.8.0-ibm-srcbefore 1:1.8.0.8.70-1.el8_101:1.8.0.8.70-1.el8_10
Red Hat:enterprise_linux:8::supplementaryjava-1.8.0-ibm-webstartbefore 1:1.8.0.8.70-1.el8_101:1.8.0.8.70-1.el8_10
SUSE:Linux Enterprise Module for Legacy 15 SP7java-1_8_0-ibmbefore 1.8.0_sr8.70-150000.3.119.11.8.0_sr8.70-150000.3.119.1
SUSE:Linux Enterprise Module for Legacy 15 SP7java-1_8_0-ibmbefore 1.8.0_sr8.71-150000.3.125.11.8.0_sr8.71-150000.3.125.1
SUSE:Linux Enterprise Server 12 SP5-LTSSjava-1_8_0-ibmbefore 1.8.0_sr8.70-30.153.11.8.0_sr8.70-30.153.1
SUSE:Linux Enterprise Server 12 SP5-LTSSjava-1_8_0-ibmbefore 1.8.0_sr8.71-30.156.11.8.0_sr8.71-30.156.1

Same product

eclipse: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-11773Prior to 0.1, AIX builds of Eclipse OMR contain unused RPATHs which may facilitate code injection and privilege elevation by local users.
    31Monitor
  • CVE-2019-11774Prior to 0.1, all builds of Eclipse OMR contain a bug where the loop versioner may fail to privatize a value that is pulled out of the loop
    29Monitor
  • CVE-2025-1471Eclipse OMR: Buffer overflow vulnerability
    28Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2025-1470Feb 21, 2025 · Eclipse OMR: Null pointer dereference vulnerability
    20Monitor
  • ← EarlierCVE-2025-14549Dec 15, 2025 · OMR on Z processors Exposing a possible buffer over-read problem
    27Monitor
  • ← EarlierCVE-2026-1188Jan 29, 2026 · In the Eclipse OMR port library component since release 0.2.0, an API function to return the textual names of all supported processor featur
    27Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
red hat:java-1.8.0-ibm1:1.8.0.8.70-1.el8_10 · Red Hat:enterprise_linux:8::supplementaryPackage registry (OSV)
red hat:java-1.8.0-ibm-demo1:1.8.0.8.70-1.el8_10 · Red Hat:enterprise_linux:8::supplementaryPackage registry (OSV)
red hat:java-1.8.0-ibm-devel1:1.8.0.8.70-1.el8_10 · Red Hat:enterprise_linux:8::supplementaryPackage registry (OSV)
red hat:java-1.8.0-ibm-headless1:1.8.0.8.70-1.el8_10 · Red Hat:enterprise_linux:8::supplementaryPackage registry (OSV)
red hat:java-1.8.0-ibm-jdbc1:1.8.0.8.70-1.el8_10 · Red Hat:enterprise_linux:8::supplementaryPackage registry (OSV)
red hat:java-1.8.0-ibm-plugin1:1.8.0.8.70-1.el8_10 · Red Hat:enterprise_linux:8::supplementaryPackage registry (OSV)
red hat:java-1.8.0-ibm-src1:1.8.0.8.70-1.el8_10 · Red Hat:enterprise_linux:8::supplementaryPackage registry (OSV)
red hat:java-21-ibm-semeru-certified-jdk1:21.0.12.0.8-1.el10_0 · Red Hat:enterprise_linux_eus:10.0Package registry (OSV)
red hat:java-21-ibm-semeru-certified-jdk-devel1:21.0.12.0.8-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:java-21-ibm-semeru-certified-jdk-headless1:21.0.12.0.8-1.el10_0 · Red Hat:enterprise_linux_eus:10.0Package registry (OSV)
red hat:java-21-ibm-semeru-certified-jdk-jmods1:21.0.12.0.8-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:java-21-ibm-semeru-certified-jdk-src1:21.0.12.0.8-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
suse:java-1_8_0-ibm1.8.0_sr8.70-30.153.1 · SUSE:Linux Enterprise Server 12 SP5-LTSSPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-14549218 days apartOMR on Z processors Exposing a possible buffer over-read problem
    27Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
A
Scope
X

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records