How severe is CVE-2025-53393?

CVE-2025-53393 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-53393 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-53393?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-53393 have an EU (EUVD) identifier?

Yes. CVE-2025-53393 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19463.

When was CVE-2025-53393 published?

CVE-2025-53393 was published on 2025-06-28 and last updated on 2026-06-17.

CVE-2025-53393

CVE-2025-53393 is a medium-severity vulnerability with a CVSS 3.x base score of 6.0. 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-502.

Key facts

Severity: Medium (CVSS 3.x base score 6.0)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-19463
Weakness: CWE-502
Published: 2025-06-28
Last modified: 2026-06-17

Description

In Akka through 2.10.6, akka-cluster-metrics uses Java serialization for cluster metrics.

Frequently asked questions

What is CVE-2025-53393?: In Akka through 2.10.6, akka-cluster-metrics uses Java serialization for cluster metrics.
How severe is CVE-2025-53393?: CVE-2025-53393 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-53393 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-53393?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-53393 have an EU (EUVD) identifier?: Yes. CVE-2025-53393 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19463.
When was CVE-2025-53393 published?: CVE-2025-53393 was published on 2025-06-28 and last updated on 2026-06-17.

References

https://github.com/akka/akka/pull/32748

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