by Kastro
Paper/Archive/CVE-2025-27520

CVE-2025-27520

bentoml BentoML — BentoML Allows Remote Code Execution (RCE) via Insecure Deserialization

EPSS 41%public exploitCVSS 9.8
critical.is priorityof 100
59
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 98.7.987 × 2019.7Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. A Remote Code Execution (RCE) vulnerability caused by insecure deserialization has been identified in the latest version (v1.4.2) of BentoML. It allows any unauthenticated user to execute arbitrary code on the server. It exists an unsafe code segment in serde.py. This vulnerability is fixed in 1.4.3.

Affected

ProductAffectedFixed inSource
BentoML>= 1.3.4, < 1.4.3–CNA

Scores by source

GitHub_M (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/bentoml/BentoML/security/advisories/GHSA-33xw-247w-6hmcrefgithub.com/bentoml/BentoML/commit/b35f4f4fcc53a8c3fe8ed9c18a013fe0a728e194