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Medium 4.3Published Nov 18, 2025
CVE-2025-10158Rsync: Out of bounds array access via negative index
Updated under an hour ago ()
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It affects rsync. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-129
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- rapid7
- NVD analysis
- Deferred
- Record last updated
- Nov 19, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
rsync rsync rsync:rsync (from the name) | through 3.4.1 | CNA record |
References
- https://github.com/RsyncProject/rsync/commit/797e17fc4a6f15e3b1756538a9f812b63942686fpatch
- https://attackerkb.com/assessments/fbacb2a6-d1cd-4011-bb3a-f06b1c8306b1technical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.