MediumFix available
qemu — security advisory
A stack-based buffer overflow was found in the QEMU e1000 network device. The code for padding short frames was dropped from individual network devices and moved to the net core code. The issue stems from the device's receive code still being able to process a short frame in loopback mode. This could lead to a buffer overrun in the e1000_receive_iov() function via the loopback code path. A malicious guest user could use this vulnerability to crash the QEMU process on the host, resulting in a denial of service.
- Products
- qemu
- Affected versions
- 1:10.0.2+ds-2, 1:10.0.2+ds-2+deb13u1, 1:10.0.2+ds-2+deb13u1~bpo12+1, 1:10.0.3+ds-0+deb13u1, 1:10.0.3+ds-1, 1:10.0.3+ds-2, 1:10.0.3+ds-3, 1:10.0.3+ds-4, 1:10.0.6+ds-0+deb13u1, 1:10.0.6+ds-0+deb13u2, 1:10.1.0+ds-1, 1:10.1.0+ds-2, 1:10.1.0+ds-3, 1:10.1.0+ds-4, 1:10.1.0+ds-5, 1:10.1.0~rc0+ds-1, 1:10.1.0~rc0+ds-2, 1:10.1.0~rc0+ds-3, 1:10.1.0~rc0+ds-4, 1:10.1.0~rc1+ds-1, 1:10.1.0~rc1+ds-1a, 1:10.1.0~rc1+ds-1b, 1:10.1.0~rc1+ds-2, 1:10.1.0~rc1+ds-3, 1:10.1.0~rc2+ds-1, 1:10.1.0~rc3+ds-1, 1:10.1.0~rc3+ds-2, 1:10.1.1+ds-1, 1:10.1.2+ds-1, 1:10.1.2+ds-2, 1:10.1.2+ds-3
- Fixed versions
- 1:10.0.7+ds-0+deb13u1, 1:10.1.3+ds-1
- CVEs
- CVE-2025-12464
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 23:34 UTC · Revision 1
Source evidence
A stack-based buffer overflow was found in the QEMU e1000 network device. The code for padding short frames was dropped from individual network devices and moved to the net core code. The issue stems from the device's receive code still being able to process a short frame in loopback mode. This could lead to a buffer overrun in the e1000_receive_iov() function via the loopback code path. A malicious guest user could use this vulnerability to crash the QEMU process on the host, resulting in a denial of service.
osv:DEBIAN-CVE-2025-12464
qemu
Fixed versions: 1:10.0.7+ds-0+deb13u1
qemu
Fixed versions: 1:10.1.3+ds-1
Complete source record
{
"id": "433434581226e80cf926f9ce9162427388bb7109e90d6c5e41a27eba849999ad",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2025-12464",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2025-12464",
"summary": "A stack-based buffer overflow was found in the QEMU e1000 network device. The code for padding short frames was dropped from individual network devices and moved to the net core code. The issue stems from the device's receive code still being able to process a short frame in loopback mode. This could lead to a buffer overrun in the e1000_receive_iov() function via the loopback code path. A malicious guest user could use this vulnerability to crash the QEMU process on the host, resulting in a denial of service.",
"evidence": "osv:DEBIAN-CVE-2025-12464",
"products": [
{
"name": {
"value": "qemu",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:10.0.7+ds-0+deb13u1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "1:10.0.2+ds-2",
"evidence": "/affected/0/versions"
},
{
"value": "1:10.0.2+ds-2+deb13u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:10.0.2+ds-2+deb13u1~bpo12+1",
"evidence": "/affected/0/versions"
},
{
"value": "1:10.0.3+ds-0+deb13u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:10.0.3+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "1:10.0.3+ds-2",
"evidence": "/affected/0/versions"
},
{
"value": "1:10.0.3+ds-3",
"evidence": "/affected/0/versions"
},
{
"value": "1:10.0.3+ds-4",
"evidence": "/affected/0/versions"
},
{
"value": "1:10.0.6+ds-0+deb13u1",
"evidence": "/affected/0/versions"
},
{
"value": "1:10.0.6+ds-0+deb13u2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "qemu",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:10.1.3+ds-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "1:10.0.2+ds-2",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.0.3+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.0.3+ds-2",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.0.3+ds-3",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.0.3+ds-4",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0+ds-2",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0+ds-3",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0+ds-4",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0+ds-5",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc0+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc0+ds-2",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc0+ds-3",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc0+ds-4",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc1+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc1+ds-1a",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc1+ds-1b",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc1+ds-2",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc1+ds-3",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc2+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc3+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.0~rc3+ds-2",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.1+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.2+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.2+ds-2",
"evidence": "/affected/1/versions"
},
{
"value": "1:10.1.2+ds-3",
"evidence": "/affected/1/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2025-12464",
"aliases": [
"DEBIAN-CVE-2025-12464"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:10.0.7+ds-0+deb13u1"
}
]
}
],
"package": {
"name": "qemu",
"purl": "pkg:deb/debian/qemu?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1:10.0.2+ds-2",
"1:10.0.2+ds-2+deb13u1",
"1:10.0.2+ds-2+deb13u1~bpo12+1",
"1:10.0.3+ds-0+deb13u1",
"1:10.0.3+ds-1",
"1:10.0.3+ds-2",
"1:10.0.3+ds-3",
"1:10.0.3+ds-4",
"1:10.0.6+ds-0+deb13u1",
"1:10.0.6+ds-0+deb13u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-12464.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:10.1.3+ds-1"
}
]
}
],
"package": {
"name": "qemu",
"purl": "pkg:deb/debian/qemu?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1:10.0.2+ds-2",
"1:10.0.3+ds-1",
"1:10.0.3+ds-2",
"1:10.0.3+ds-3",
"1:10.0.3+ds-4",
"1:10.1.0+ds-1",
"1:10.1.0+ds-2",
"1:10.1.0+ds-3",
"1:10.1.0+ds-4",
"1:10.1.0+ds-5",
"1:10.1.0~rc0+ds-1",
"1:10.1.0~rc0+ds-2",
"1:10.1.0~rc0+ds-3",
"1:10.1.0~rc0+ds-4",
"1:10.1.0~rc1+ds-1",
"1:10.1.0~rc1+ds-1a",
"1:10.1.0~rc1+ds-1b",
"1:10.1.0~rc1+ds-2",
"1:10.1.0~rc1+ds-3",
"1:10.1.0~rc2+ds-1",
"1:10.1.0~rc3+ds-1",
"1:10.1.0~rc3+ds-2",
"1:10.1.1+ds-1",
"1:10.1.2+ds-1",
"1:10.1.2+ds-2",
"1:10.1.2+ds-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-12464.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T17:47:47.570043747Z",
"provider": "osv",
"upstream": [
"CVE-2025-12464"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2025-12464"
]
},
"related_cves": [
{
"value": "CVE-2025-12464",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 418964,
"published_at": "2025-10-31T22:15:32.977+00:00"
}