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Fencer Intel
high 7.5

CVE-2026-16243 json

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

published 3mo ago modified 16d ago also EUVD-2026-46347

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

Summary

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.

Patch / fix

  • Eclipse Foundation Eclipse OMR 0.11
  • java-21-ibm-semeru-certified-jdk RHEL 10.2 1:21.0.12.0.8-2.el10_2
  • java-21-ibm-semeru-certified-jdk-src RHEL 10.2 1:21.0.12.0.8-2.el10_2
  • java-21-ibm-semeru-certified-jdk-jmods RHEL 10.2 1:21.0.12.0.8-2.el10_2
  • java-21-ibm-semeru-certified-jdk-headless RHEL 10.2 1:21.0.12.0.8-2.el10_2
  • java-1.8.0-ibm RHEL 8 1:1.8.0.8.70-1.el8_10
  • java-1.8.0-ibm-src RHEL 8 1:1.8.0.8.70-1.el8_10
  • java-1.8.0-ibm-demo RHEL 8 1:1.8.0.8.70-1.el8_10
  • java-1.8.0-ibm-jdbc RHEL 8 1:1.8.0.8.70-1.el8_10

red hat advisories RHSA-2026:52948RHSA-2026:52949

  • java-1_8_0-ibm SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +6 more 1.8.0_sr8.71-150000.3.125.1
  • java-1_8_0-ibm SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +6 more 1.8.0_sr8.70-150000.3.119.1
  • java-1_8_0-ibm SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 1.8.0_sr8.71-30.156.1
  • java-1_8_0-ibm SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 1.8.0_sr8.70-30.153.1

suse advisories SUSE-SU-2026:4153-1SUSE-SU-2026:4107-1SUSE-SU-2026:3615-1SUSE-SU-2026:3614-1

Is CVE-2026-16243 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-16243 updated cvss 4.8

Eclipse OMR: Eclipse OMR: Denial of service via improper input validation in arraycmp SIMD

  • Red Hat Enterprise Linux Supplementary (v. 8) java-1.8.0-ibm 1.8.0.8.70-1.el8_10, java-1.8.0-ibm-src 1.8.0.8.70-1.el8_10, java-1.8.0-ibm-demo 1.8.0.8.70-1.el8_10, java-1.8.0-ibm-jdbc 1.8.0.8.70-1.el8_10, java-1.8.0-ibm-plugin 1.8.0.8.70-1.el8_10, java-1.8.0-ibm-headless 1.8.0.8.70-1.el8_10, +1 more
    fixed: vendor fix RHSA-2026:52949
  • Red Hat Enterprise Linux Supplementary (v. 10) java-21-ibm-semeru-certified-jdk 21.0.12.0.8-2.el10_2, java-21-ibm-semeru-certified-jdk-src 21.0.12.0.8-2.el10_2, java-21-ibm-semeru-certified-jdk-jmods 21.0.12.0.8-2.el10_2, java-21-ibm-semeru-certified-jdk-headless 21.0.12.0.8-2.el10_2 Red Hat Enterprise Linux Supplementary EUS (v. 10.0) java-21-ibm-semeru-certified-jdk 21.0.12.0.8-1.el10_0, java-21-ibm-semeru-certified-jdk-headless 21.0.12.0.8-1.el10_0
    fixed: vendor fix RHSA-2026:52948

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
3mo ago

Exploit prediction

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 5.7 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
CNA 4.0 5.7 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 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Eclipse Foundation Eclipse OMR

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.