Deserialization in Akka

CVE-2025-53393

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

Vulnerability class: Insecure Deserialization

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.002 (11.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 11.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-53393: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-53393?
CVE-2025-53393 is a medium-severity vulnerability in Akka, classified under Deserialization of Untrusted Data. CVSS score: 6.0/10. Published 2025-06-28.
How severe is CVE-2025-53393?
Medium severity. CVSS v3 base score is 6.0 out of 10.