What is CVE-2025-61622?

CVE-2025-61622 is a critical-severity vulnerability in Apache Fory, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2025-10-01.

How severe is CVE-2025-61622?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-61622 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Apache Fory

CVE-2025-61622

Deserialization of untrusted data in python in pyfory versions 0.12.0 through 0.12.2, or the legacy pyfury versions from 0.1.0 through 0.10.3: allows arbitrary code execution. An application is vulnerable if it reads pyfory serialized data…

Vulnerability class: Insecure Deserialization

EPSS: 0.413 (98.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apache Fory
Apache Software Foundation Fory — versions 0.12.0, 0.1.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

security@apache.org (vendor-advisory, Issue Tracking, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2025-61622?: CVE-2025-61622 is a critical-severity vulnerability in Apache Fory, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2025-10-01.
How severe is CVE-2025-61622?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-61622 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.