Deserialization in Milvus
CVE-2025-15453
A security vulnerability has been detected in milvus up to 2.6.7. This vulnerability affects the function expr.Exec of the file pkg/util/expr/expr.go of the component HTTP Endpoint. The manipulation of the argument code leads to deserialization. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. A fix is planned for the next release 2.6.8.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (26.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000
Affected products
- Milvus — versions 2.6.0, 2.6.1, 2.6.2
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/milvus-io/milvus/issues/46442 (issue-tracking)
- github.com/milvus-io/milvus/issues/46442 (issue-tracking)
- github.com/milvus-io/milvus/issues/46442 (issue-tracking, exploit)
- github.com/milvus-io/milvus/milestone/139 (related)
Frequently asked questions
- What is CVE-2025-15453?
- CVE-2025-15453 is a medium-severity vulnerability in Milvus, classified under Improper Input Validation. CVSS score: 6.3/10. Published 2026-01-05.
- How severe is CVE-2025-15453?
- Medium severity. CVSS v3 base score is 6.3 out of 10.