Deserialization in Hiyouga Llama-Factory
CVE-2025-46567
LLama Factory enables fine-tuning of large language models. Prior to version 1.0.0, a critical vulnerability exists in the `llamafy_baichuan2.py` script of the LLaMA-Factory project. The script performs insecure deserialization using `torch.load()` on user-supplied `.bin` files from an input directory. An attacker can exploit this behavior by crafting a malicious `.bin` file that executes arbitrary commands during deserialization. This issue has been patched in version 1.0.0.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (19.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Hiyouga Llama-Factory — versions < 1.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2025-46567?
- CVE-2025-46567 is a medium-severity vulnerability in Hiyouga Llama-Factory, classified under Deserialization of Untrusted Data. CVSS score: 6.1/10. Published 2025-05-01.
- How severe is CVE-2025-46567?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2025-46567 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.