How severe is CVE-2025-14549?

CVE-2025-14549 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2025-14549 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-14549?

CVE-2025-14549 affects Eclipse Omr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-14549?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-14549 have an EU (EUVD) identifier?

Yes. CVE-2025-14549 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203332.

When was CVE-2025-14549 published?

CVE-2025-14549 was published on 2025-12-15 and last updated on 2026-06-17.

CVE-2025-14549

CVE-2025-14549 is a high-severity vulnerability in Eclipse Omr with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v4: 6.9
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-203332
Weakness: CWE-125
Affected product: Eclipse Omr
Published: 2025-12-15
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2025-14549?: 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.
How severe is CVE-2025-14549?: CVE-2025-14549 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2025-14549 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-14549?: CVE-2025-14549 affects Eclipse Omr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-14549?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-14549 have an EU (EUVD) identifier?: Yes. CVE-2025-14549 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203332.
When was CVE-2025-14549 published?: CVE-2025-14549 was published on 2025-12-15 and last updated on 2026-06-17.

References

https://github.com/eclipse-omr/omr/pull/8073

Affected products (1)

cpe:2.3:a:eclipse:omr:0.7.0:*:*:*:*:*:*:*

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