How severe is CVE-2025-55089?

CVE-2025-55089 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-2025-55089 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55089?

CVE-2025-55089 affects Eclipse Threadx Filex. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55089?

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-2025-55089 have an EU (EUVD) identifier?

Yes. CVE-2025-55089 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34715.

When was CVE-2025-55089 published?

CVE-2025-55089 was published on 2025-10-16 and last updated on 2026-06-17.

CVE-2025-55089

CVE-2025-55089 is a critical-severity vulnerability in Eclipse Threadx Filex 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.2
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-34715
Weakness: CWE-119
Affected product: Eclipse Threadx Filex
Published: 2025-10-16
Last modified: 2026-06-17

Description

In FileX before 6.4.2, the file support module for Eclipse Foundation ThreadX, there was a possible buffer overflow in the FileX RAM disk driver. It could cause a remote execurtion after receiving a crafted sequence of packets

Frequently asked questions

What is CVE-2025-55089?: In FileX before 6.4.2, the file support module for Eclipse Foundation ThreadX, there was a possible buffer overflow in the FileX RAM disk driver. It could cause a remote execurtion after receiving a crafted sequence of packets
How severe is CVE-2025-55089?: CVE-2025-55089 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-2025-55089 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55089?: CVE-2025-55089 affects Eclipse Threadx Filex. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55089?: 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-2025-55089 have an EU (EUVD) identifier?: Yes. CVE-2025-55089 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34715.
When was CVE-2025-55089 published?: CVE-2025-55089 was published on 2025-10-16 and last updated on 2026-06-17.

References

https://github.com/eclipse-threadx/filex/security/advisories/GHSA-467v-6j75-3j7g

Affected products (1)

cpe:2.3:a:eclipse:threadx_filex:*:*:*:*:*:*:*:*

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