Rsync: Out of bounds array access via negative index

4.3 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Description

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.

Basic Information

ID CVE-2025-10158

Source rapid7

Published Nov 18, 2025 at 14:24

Modified Nov 18, 2025 at 14:45

Affected Product

Vendor rsync

Product rsync

Affected Versions rsync rsync 0

CWE Classification

CWE-129

References

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    "lastseen": "",
    "description": "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 \n\nmalicious \n\nrsync client requires at least read access to the remote rsync module in order to trigger the issue.",
    "published": "2025-11-18T14:24:19.210Z",
    "modified": "2025-11-18T14:45:58.065Z",
    "type": "cve",
    "title": "Rsync: Out of bounds array access via negative index",
    "source": "rapid7",
    "references": "https://github.com/RsyncProject/rsync/commit/797e17fc4a6f15e3b1756538a9f812b63942686f\nhttps://attackerkb.com/assessments/fbacb2a6-d1cd-4011-bb3a-f06b1c8306b1",
    "id": "CVE-2025-10158",
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    "cvelist": null,
    "sourceData": "rsync rsync 0",
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    "cvss": {
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        "version": "3.1"
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        "privilegesRequired": "",
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        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
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    "product": "rsync",
    "version": "0",
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}

Rsync: Out of bounds array access via negative index_CVE-2025-10158