Vulnerability in Rsync
CVE-2025-10158
A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The malicious rsync client requires at least read access to the remote rsync module in order to trigger the issue.
EPSS: 0.003 (24.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Rsync — versions 0
Weakness classification (CWE)
References
- cve@rapid7.com (patch)
- cve@rapid7.com (technical-description)
Frequently asked questions
- What is CVE-2025-10158?
- CVE-2025-10158 is a medium-severity vulnerability in Rsync, classified under Improper Validation of Array Index. CVSS score: 4.3/10. Published 2025-11-18.
- How severe is CVE-2025-10158?
- Medium severity. CVSS v3 base score is 4.3 out of 10.