---
id: CVE-2025-14549
title: >-
  In the Eclipse OMR compiler component, since release 0.7.0, an optimization
  enabled for Eclipse OpenJ9 consumers of OMR on Z processors incorrectly
  handles NUL (0x00) characters during the Latin-compatible charset (UTF-8,
  ISO8859-1, ASCI…
summary: >-
  In the Eclipse OMR compiler component, since release 0.7.0, an optimization
  enabled for Eclipse OpenJ9 consumers of OMR on Z processors incorrectly
  handles NUL (0x00) characters during the Latin-compatible charset (UTF-8,
  ISO8859-1, ASCI…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'
cwe:
  - CWE-125
vendor: eclipse
product: omr
affected:
  - omr = 0.7.0
published: '2025-12-15'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-14549'
references:
  - url: 'https://github.com/eclipse-omr/omr/pull/8073'
    label: emo@eclipse.org
tags:
  - nvd
epss: 0.00298
epssPercentile: 0.20784
ingestedAt: '2026-10-14T13:30:58.425Z'
---

## Overview

In the Eclipse OMR compiler component, since release 0.7.0, an optimization enabled for Eclipse OpenJ9 consumers of OMR on Z processors incorrectly handles NUL (0x00) characters during the Latin-compatible charset (UTF-8, ISO8859-1, ASCII, etc) to IBM-1047/037 translation sequence. This can cause the output byte array to be truncated, discarding the first NUL byte and all subsequent characters, and thereby exposing a possible buffer over-read problem. This issue is fixed in Eclipse OMR version 0.8.0.

## Affected

- `omr = 0.7.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.