CVE-2025-27520 is a critical Remote Code Execution (RCE) vulnerability in BentoML versions 1.3.8 through 1.4.2, a Python library for AI model serving. This flaw, stemming from insecure deserialization in serde.py, allows unauthenticated attackers to execute arbitrary code on the server. With a CVSS score of 9.8 (Critical) and an EPSS score of 0.8095, it presents a severe risk due to its network-based attack vector, low complexity, and complete compromise potential (Confidentiality, Integrity, Availability). While not yet in CISA's KEV catalog, a Metasploit module for exploitation exists, and community discussion indicates awareness and urgency for patching to version 1.4.3.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.3.4, <= 1.4.2CPE matchmatch criteria | cpe:2.3:a:bentoml:bentoml:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.