MediumFix available
rsync — security advisory
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.
- Products
- rsync
- Affected versions
- 3.2.7-1, 3.2.7-1+deb12u1, 3.2.7-1+deb12u2, 3.2.7-1+deb12u3, 3.4.1+ds1-5, 3.4.1+ds1-6
- Fixed versions
- 3.2.7-1+deb12u4, 3.4.1+ds1-5+deb13u1, 3.4.1+ds1-7
- CVEs
- CVE-2025-10158
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 23:47 UTC · Revision 1
Source evidence
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.
osv:DEBIAN-CVE-2025-10158
rsync
Fixed versions: 3.2.7-1+deb12u4
rsync
Fixed versions: 3.4.1+ds1-5+deb13u1
rsync
Fixed versions: 3.4.1+ds1-7
Complete source record
{
"id": "914d9b8867bdbf66dbd9d5754bbf719c25c9324ca323513f6c67b7dda29c50d6",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2025-10158",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2025-10158",
"summary": "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.",
"evidence": "osv:DEBIAN-CVE-2025-10158",
"products": [
{
"name": {
"value": "rsync",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.2.7-1+deb12u4",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "3.2.7-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.2.7-1+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "3.2.7-1+deb12u2",
"evidence": "/affected/0/versions"
},
{
"value": "3.2.7-1+deb12u3",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "rsync",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.1+ds1-5+deb13u1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "3.4.1+ds1-5",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "rsync",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.4.1+ds1-7",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "3.4.1+ds1-5",
"evidence": "/affected/2/versions"
},
{
"value": "3.4.1+ds1-6",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2025-10158",
"aliases": [
"DEBIAN-CVE-2025-10158"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.7-1+deb12u4"
}
]
}
],
"package": {
"name": "rsync",
"purl": "pkg:deb/debian/rsync?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"3.2.7-1",
"3.2.7-1+deb12u1",
"3.2.7-1+deb12u2",
"3.2.7-1+deb12u3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-10158.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.1+ds1-5+deb13u1"
}
]
}
],
"package": {
"name": "rsync",
"purl": "pkg:deb/debian/rsync?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"3.4.1+ds1-5"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-10158.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.1+ds1-7"
}
]
}
],
"package": {
"name": "rsync",
"purl": "pkg:deb/debian/rsync?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.4.1+ds1-5",
"3.4.1+ds1-6"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-10158.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T17:47:51.508647624Z",
"provider": "osv",
"upstream": [
"CVE-2025-10158"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2025-10158"
]
},
"related_cves": [
{
"value": "CVE-2025-10158",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 419326,
"published_at": "2025-11-18T15:16:25.433+00:00"
}