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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 43.5%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
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 from untrusted sources. An attacker can craft a data stream that selects pickle-fallback serializer during deserialization, leading to the execution of `pickle.loads`, which is vulnerable to remote code execution. Users are recommended to upgrade to pyfory version 0.12.3 or later, which has removed pickle fallback serializer and thus fixes this issue.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 43.51% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- apache/fory
- Source
- security@apache.org
References
- https://lists.apache.org/thread/vfn9hp9qt06db5yo1gmj3l114o3o2csdIssue Tracking, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2025/09/29/3Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.