CVE-2026-16243

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

5.7 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: Active

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.52%Up 0.2 points since Jul 22, 2026

What each source reports

CVE List Score used 5.7

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

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.

Record: CVE-2026-16243
CVSS 4.0: 5.7 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
Weakness: CWE-125
Updated: 2026-11-02

EUVDEUVD-2026-46347 5.7

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.

Record: EUVD-2026-46347
CVSS 4.0: 5.7 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
Updated: 2026-11-02

GitHub AdvisoriesGHSA-c5v6-97gv-39fw 5.7

In Eclipse OMR versions up to 0.11, the arraycmp SIMD implementation for Z and P does not check...

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.

Record: GHSA-c5v6-97gv-39fw
CVSS 4.0: 5.7 MediumCVSS: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
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-125
Updated: 2026-11-02

NVD 5.7

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.

Record: CVE-2026-16243
CVSS 4.0: 5.7 MediumCVSS: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
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-125
Updated: 2026-11-02

OSV 5.7

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

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.

Record: CVE-2026-16243
CVSS 4.0: 5.7 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
Weakness: CWE-125
Updated: 2026-11-02

OSVRHSA-2026:52948 7.5

Red Hat Security Advisory: java-21-ibm-semeru-certified-jdk security update

Record: RHSA-2026:52948
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

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OSVRHSA-2026:52949 8.1

Red Hat Security Advisory: java-1.8.0-ibm security update

Record: RHSA-2026:52949
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVSUSE-SU-2026:3614-1 No score

Security update for java-1_8_0-ibm

This update for java-1_8_0-ibm fixes the following issues:

Update to Java 8.0 Service Refresh 8 Fix Pack 70 (bsc#1273223).

CVE-2026-16243: inconsistent handling of zero length data in arraycmp of the SIMD evaluator (bsc#1274275).
CVE-2026-16439: using -Xtrace to trace method arguments can lead to buffer underflow (bsc#1272250).
CVE-2026-16441: method resolution default method precedence failure (bsc#1272248).
CVE-2026-41254: lcms2: information disclosure or denial of service via integer overflow in CubeSize (bsc#1272459).
CVE-2026-46968: unauthorized creation, deletion or modification access to critical data (bsc#1272224).
CVE-2026-47010: unauthorized update, insert or delete access to data (bsc#1272225).
CVE-2026-47021: partial denial of service via multiple network protocols (bsc#1272227).
CVE-2026-47027: partial denial of service via multiple network protocols (bsc#1272228).
CVE-2026-47057: hang or frequently repeatable crash via multiple network protocols (bsc#1272233).
CVE-2026-47058: unauthorized creation, deletion or modification access to critical data (bsc#1272234).
CVE-2026-47059: partial denial of service via multiple network protocols (bsc#1272235).
CVE-2026-47063: unauthorized creation, deletion or modification access to critical data (bsc#1272236).
CVE-2026-60147: unauthorized update, insert or delete access to data (bsc#1272237).
CVE-2026-8400: malicious IIOP server can induce loading and instantation of arbitrary classes (bsc#1274276).

Record: SUSE-SU-2026:3614-1
Updated: 2026-11-02

OSVSUSE-SU-2026:3615-1 No score

Security update for java-1_8_0-ibm

This update for java-1_8_0-ibm fixes the following issues:

Update to Java 8.0 Service Refresh 8 Fix Pack 70 (bsc#1273223).

CVE-2026-16243: inconsistent handling of zero length data in arraycmp of the SIMD evaluator (bsc#1274275).
CVE-2026-16439: using -Xtrace to trace method arguments can lead to buffer underflow (bsc#1272250).
CVE-2026-16441: method resolution default method precedence failure (bsc#1272248).
CVE-2026-41254: lcms2: information disclosure or denial of service via integer overflow in CubeSize (bsc#1272459).
CVE-2026-46968: unauthorized creation, deletion or modification access to critical data (bsc#1272224).
CVE-2026-47010: unauthorized update, insert or delete access to data (bsc#1272225).
CVE-2026-47021: partial denial of service via multiple network protocols (bsc#1272227).
CVE-2026-47027: partial denial of service via multiple network protocols (bsc#1272228).
CVE-2026-47057: hang or frequently repeatable crash via multiple network protocols (bsc#1272233).
CVE-2026-47058: unauthorized creation, deletion or modification access to critical data (bsc#1272234).
CVE-2026-47059: partial denial of service via multiple network protocols (bsc#1272235).
CVE-2026-47063: unauthorized creation, deletion or modification access to critical data (bsc#1272236).
CVE-2026-60147: unauthorized update, insert or delete access to data (bsc#1272237).
CVE-2026-8400: malicious IIOP server can induce loading and instantation of arbitrary classes (bsc#1274276).

Record: SUSE-SU-2026:3615-1
Updated: 2026-11-02

OSVSUSE-SU-2026:4107-1 No score

Security update for java-1_8_0-ibm

This update for java-1_8_0-ibm fixes the following issues:

Update to Java 8.0 Service Refresh 8 Fix Pack 71 (bsc#1277833):

CVE-2026-8400: flaw in the ORB component may allow a malicious IIOP server to induce loading and instantation of arbitrary classes (bsc#1274276).
CVE-2026-16243: arraycmp SIMD implementation for Z and P does not check if the number of bytes to compare is zero (bsc#1274275).
CVE-2026-16440: a crafted .class file with deeply nested annotations causes a segmentation fault (bsc#1275779).
CVE-2026-60589: OpenJDK: Improve Resource Resolving (bsc#1275777).
CVE-2026-61308: OpenJDK: Enhance HTTP Connections (bsc#1275778).
CVE-2026-70906: OpenJDK: Improve font loading (bsc#1275763).
CVE-2026-70907: OpenJDK: Enhance TLS server (bsc#1275764).
CVE-2026-71054: Vulnerability in Oracle Java SE (component: 2D) (bsc#1277019).
Oracle August 18 2026 CSPU and IBM Security Update August 2026 (bsc#1277833).

Record: SUSE-SU-2026:4107-1
Updated: 2026-11-02

OSVSUSE-SU-2026:4153-1 No score

Security update for java-1_8_0-ibm

This update for java-1_8_0-ibm fixes the following issues:

Update to Java 8.0 Service Refresh 8 Fix Pack 71 (bsc#1277833):

CVE-2026-8400: flaw in the ORB component may allow a malicious IIOP server to induce loading and instantation of arbitrary classes (bsc#1274276).
CVE-2026-16243: arraycmp SIMD implementation for Z and P does not check if the number of bytes to compare is zero (bsc#1274275).
CVE-2026-16440: a crafted .class file with deeply nested annotations causes a segmentation fault (bsc#1275779).
CVE-2026-60589: OpenJDK: Improve Resource Resolving (bsc#1275777).
CVE-2026-61308: OpenJDK: Enhance HTTP Connections (bsc#1275778).
CVE-2026-70906: OpenJDK: Improve font loading (bsc#1275763).
CVE-2026-70907: OpenJDK: Enhance TLS server (bsc#1275764).
CVE-2026-71054: Vulnerability in Oracle Java SE (component: 2D) (bsc#1277019).
Oracle August 18 2026 CSPU and IBM Security Update August 2026 (bsc#1277833).

Record: SUSE-SU-2026:4153-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`java-21-ibm-semeru-certified-jdk` Red Hat:enterprise_linux_eus:10.0 From an advisory covering 12 CVEs	before 1:21.0.12.0.8-1.el10_0	1:21.0.12.0.8-1.el10_0
`java-21-ibm-semeru-certified-jdk-headless` Red Hat:enterprise_linux_eus:10.0 From an advisory covering 12 CVEs	before 1:21.0.12.0.8-1.el10_0	1:21.0.12.0.8-1.el10_0
`java-21-ibm-semeru-certified-jdk` Red Hat:enterprise_linux:10.2 From an advisory covering 12 CVEs	before 1:21.0.12.0.8-2.el10_2	1:21.0.12.0.8-2.el10_2
`java-21-ibm-semeru-certified-jdk-devel` Red Hat:enterprise_linux:10.2 From an advisory covering 12 CVEs	before 1:21.0.12.0.8-2.el10_2	1:21.0.12.0.8-2.el10_2
`java-21-ibm-semeru-certified-jdk-headless` Red Hat:enterprise_linux:10.2 From an advisory covering 12 CVEs	before 1:21.0.12.0.8-2.el10_2	1:21.0.12.0.8-2.el10_2
`java-21-ibm-semeru-certified-jdk-jmods` Red Hat:enterprise_linux:10.2 From an advisory covering 12 CVEs	before 1:21.0.12.0.8-2.el10_2	1:21.0.12.0.8-2.el10_2
`java-21-ibm-semeru-certified-jdk-src` Red Hat:enterprise_linux:10.2 From an advisory covering 12 CVEs	before 1:21.0.12.0.8-2.el10_2	1:21.0.12.0.8-2.el10_2
`java-1.8.0-ibm` Red Hat:enterprise_linux:8::supplementary From an advisory covering 14 CVEs	before 1:1.8.0.8.70-1.el8_10	1:1.8.0.8.70-1.el8_10
`java-1.8.0-ibm-demo` Red Hat:enterprise_linux:8::supplementary From an advisory covering 14 CVEs	before 1:1.8.0.8.70-1.el8_10	1:1.8.0.8.70-1.el8_10
`java-1.8.0-ibm-devel` Red Hat:enterprise_linux:8::supplementary From an advisory covering 14 CVEs	before 1:1.8.0.8.70-1.el8_10	1:1.8.0.8.70-1.el8_10

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Affected packages
Package	Affected	Fixed
`java-1.8.0-ibm-headless` Red Hat:enterprise_linux:8::supplementary From an advisory covering 14 CVEs	before 1:1.8.0.8.70-1.el8_10	1:1.8.0.8.70-1.el8_10
`java-1.8.0-ibm-jdbc` Red Hat:enterprise_linux:8::supplementary From an advisory covering 14 CVEs	before 1:1.8.0.8.70-1.el8_10	1:1.8.0.8.70-1.el8_10
`java-1.8.0-ibm-plugin` Red Hat:enterprise_linux:8::supplementary From an advisory covering 14 CVEs	before 1:1.8.0.8.70-1.el8_10	1:1.8.0.8.70-1.el8_10
`java-1.8.0-ibm-src` Red Hat:enterprise_linux:8::supplementary From an advisory covering 14 CVEs	before 1:1.8.0.8.70-1.el8_10	1:1.8.0.8.70-1.el8_10
`java-1.8.0-ibm-webstart` Red Hat:enterprise_linux:8::supplementary From an advisory covering 14 CVEs	before 1:1.8.0.8.70-1.el8_10	1:1.8.0.8.70-1.el8_10
`java-1_8_0-ibm` SUSE:Linux Enterprise Server 12 SP5-LTSS From an advisory covering 14 CVEs	before 1.8.0_sr8.70-30.153.1	1.8.0_sr8.70-30.153.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 From an advisory covering 14 CVEs	before 1.8.0_sr8.70-30.153.1	1.8.0_sr8.70-30.153.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Module for Legacy 15 SP7 From an advisory covering 14 CVEs	before 1.8.0_sr8.70-150000.3.119.1	1.8.0_sr8.70-150000.3.119.1
`java-1_8_0-ibm` SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS From an advisory covering 14 CVEs	before 1.8.0_sr8.70-150000.3.119.1	1.8.0_sr8.70-150000.3.119.1
`java-1_8_0-ibm` SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS From an advisory covering 14 CVEs	before 1.8.0_sr8.70-150000.3.119.1	1.8.0_sr8.70-150000.3.119.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server 15 SP4-LTSS From an advisory covering 14 CVEs	before 1.8.0_sr8.70-150000.3.119.1	1.8.0_sr8.70-150000.3.119.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server 15 SP5-LTSS From an advisory covering 14 CVEs	before 1.8.0_sr8.70-150000.3.119.1	1.8.0_sr8.70-150000.3.119.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server 15 SP6-LTSS From an advisory covering 14 CVEs	before 1.8.0_sr8.70-150000.3.119.1	1.8.0_sr8.70-150000.3.119.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server for SAP Applications 15 SP4 From an advisory covering 14 CVEs	before 1.8.0_sr8.70-150000.3.119.1	1.8.0_sr8.70-150000.3.119.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server for SAP Applications 15 SP5 From an advisory covering 14 CVEs	before 1.8.0_sr8.70-150000.3.119.1	1.8.0_sr8.70-150000.3.119.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server for SAP Applications 15 SP6 From an advisory covering 14 CVEs	before 1.8.0_sr8.70-150000.3.119.1	1.8.0_sr8.70-150000.3.119.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server 12 SP5-LTSS From an advisory covering 8 CVEs	before 1.8.0_sr8.71-30.156.1	1.8.0_sr8.71-30.156.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 From an advisory covering 8 CVEs	before 1.8.0_sr8.71-30.156.1	1.8.0_sr8.71-30.156.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Module for Legacy 15 SP7 From an advisory covering 8 CVEs	before 1.8.0_sr8.71-150000.3.125.1	1.8.0_sr8.71-150000.3.125.1
`java-1_8_0-ibm` SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS From an advisory covering 8 CVEs	before 1.8.0_sr8.71-150000.3.125.1	1.8.0_sr8.71-150000.3.125.1
`java-1_8_0-ibm` SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS From an advisory covering 8 CVEs	before 1.8.0_sr8.71-150000.3.125.1	1.8.0_sr8.71-150000.3.125.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server 15 SP4-LTSS From an advisory covering 8 CVEs	before 1.8.0_sr8.71-150000.3.125.1	1.8.0_sr8.71-150000.3.125.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server 15 SP5-LTSS From an advisory covering 8 CVEs	before 1.8.0_sr8.71-150000.3.125.1	1.8.0_sr8.71-150000.3.125.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server 15 SP6-LTSS From an advisory covering 8 CVEs	before 1.8.0_sr8.71-150000.3.125.1	1.8.0_sr8.71-150000.3.125.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server for SAP Applications 15 SP4 From an advisory covering 8 CVEs	before 1.8.0_sr8.71-150000.3.125.1	1.8.0_sr8.71-150000.3.125.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server for SAP Applications 15 SP5 From an advisory covering 8 CVEs	before 1.8.0_sr8.71-150000.3.125.1	1.8.0_sr8.71-150000.3.125.1
`java-1_8_0-ibm` SUSE:Linux Enterprise Server for SAP Applications 15 SP6 From an advisory covering 8 CVEs	before 1.8.0_sr8.71-150000.3.125.1	1.8.0_sr8.71-150000.3.125.1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-16243 is a medium vulnerability (CVSS 5.7) in Eclipse Omr, published July 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.52%, the 44th percentile. No source names a fixed version.

References

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