CVE-2025-27520CRITICAL 9.8EPSS p98.6%

CVE-2025-27520CVE-2025-27520

Description

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.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS43.67% probability of exploitation · percentile 98.6% · 2026-06-19T12:03:05Z
Published2025-04-04
Last modified2025-06-27

Underlying weaknesses· 1

CWE-502

References

  1. https://github.com/bentoml/BentoML/commit/b35f4f4fcc53a8c3fe8ed9c18a013fe0a728e194
  2. https://github.com/bentoml/BentoML/security/advisories/GHSA-33xw-247w-6hmc
  3. https://github.com/bentoml/BentoML/security/advisories/GHSA-33xw-247w-6hmc

1

TypeTargetConfidenceTier
WeaknessDeserialization of Untrusted Datacwe-5020%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.