How severe is CVE-2026-1188?

CVE-2026-1188 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-1188 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1188?

CVE-2026-1188 affects Eclipse Omr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1188?

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

Does CVE-2026-1188 have an EU (EUVD) identifier?

Yes. CVE-2026-1188 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4991.

When was CVE-2026-1188 published?

CVE-2026-1188 was published on 2026-01-29 and last updated on 2026-06-17.

CVE-2026-1188

CVE-2026-1188 is a critical-severity vulnerability in Eclipse Omr with a CVSS 3.x base score of 9.8. 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 6.9
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4991
Weakness: CWE-120
Affected product: Eclipse Omr
Published: 2026-01-29
Last modified: 2026-06-17

Description

In the Eclipse OMR port library component since release 0.2.0, an API function to return the textual names of all supported processor features was not accounting for the separator inserted between processor features. If the output buffer supplied to this function was incorrectly sized, failing to account for the separator when determining when a write to the buffer was safe could lead to a buffer overflow. This issue is fixed in Eclipse OMR version 0.8.0.

Frequently asked questions

What is CVE-2026-1188?: In the Eclipse OMR port library component since release 0.2.0, an API function to return the textual names of all supported processor features was not accounting for the separator inserted between processor features. If the output buffer supplied to this function was incorrectly sized, failing to account for the separator when determining when a write to the buffer was safe could lead to a buffer overflow. This issue is fixed in Eclipse OMR version 0.8.0.
How severe is CVE-2026-1188?: CVE-2026-1188 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-1188 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1188?: CVE-2026-1188 affects Eclipse Omr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1188?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-1188 have an EU (EUVD) identifier?: Yes. CVE-2026-1188 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4991.
When was CVE-2026-1188 published?: CVE-2026-1188 was published on 2026-01-29 and last updated on 2026-06-17.

References

https://github.com/eclipse-omr/omr/pull/8082

Affected products (1)

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

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