LowFix available
xen — security advisory
A transient execution vulnerability within AMD CPUs may allow a local user-privileged attacker to leak data via the floating point divisor unit, potentially resulting in loss of confidentiality.
- Products
- xen
- Affected versions
- 4.17.1+2-gb773c48e36-1, 4.17.2+55-g0b56bed864-1, 4.17.2+76-ge1f9cb16e2-1, 4.17.2+76-ge1f9cb16e2-1~deb12u1, 4.17.2-1, 4.17.3+10-g091466ba55-1, 4.17.3+10-g091466ba55-1.1, 4.17.3+10-g091466ba55-1.1~exp1, 4.17.3+10-g091466ba55-1.1~exp2, 4.17.3+10-g091466ba55-1~deb12u1, 4.17.3+36-g54dacb5c02-1, 4.17.5+23-ga4e5191dc0-1, 4.17.5+23-ga4e5191dc0-1+deb12u1, 4.17.5+72-g01140da4e8-1, 4.20.0+68-g35cb38b222-1, 4.20.2+37-g61ff35323e-0+deb13u1, 4.20.2+37-g61ff35323e-1, 4.20.2+7-g1badcf5035-0+deb13u1, 4.20.2+7-g1badcf5035-1, 4.20.2+7-g1badcf5035-2
- Fixed versions
- 4.17.7-0+deb12u1, 4.20.3+127-gc42374a105-0+deb13u1, 4.20.3+127-gc42374a105-1
- CVEs
- CVE-2025-54505
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 16:27 UTC · Revision 1
Source evidence
A transient execution vulnerability within AMD CPUs may allow a local user-privileged attacker to leak data via the floating point divisor unit, potentially resulting in loss of confidentiality.
osv:DEBIAN-CVE-2025-54505
xen
Fixed versions: 4.17.7-0+deb12u1
xen
Fixed versions: 4.20.3+127-gc42374a105-0+deb13u1
xen
Fixed versions: 4.20.3+127-gc42374a105-1
Complete source record
{
"id": "9274f07ffefe8eac4a6cf827bc7400172c99bae47aeca07a9958a82e387e0d89",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2025-54505",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2025-54505",
"summary": "A transient execution vulnerability within AMD CPUs may allow a local user-privileged attacker to leak data via the floating point divisor unit, potentially resulting in loss of confidentiality.",
"evidence": "osv:DEBIAN-CVE-2025-54505",
"products": [
{
"name": {
"value": "xen",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.17.7-0+deb12u1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "4.17.1+2-gb773c48e36-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.2+55-g0b56bed864-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.2+76-ge1f9cb16e2-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.2+76-ge1f9cb16e2-1~deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.3+10-g091466ba55-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.3+10-g091466ba55-1.1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.3+10-g091466ba55-1.1~exp1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.3+10-g091466ba55-1.1~exp2",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.3+10-g091466ba55-1~deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.3+36-g54dacb5c02-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.5+23-ga4e5191dc0-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.5+23-ga4e5191dc0-1+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "4.17.5+72-g01140da4e8-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "xen",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.20.3+127-gc42374a105-0+deb13u1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "4.20.0+68-g35cb38b222-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.20.2+37-g61ff35323e-0+deb13u1",
"evidence": "/affected/1/versions"
},
{
"value": "4.20.2+37-g61ff35323e-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.20.2+7-g1badcf5035-0+deb13u1",
"evidence": "/affected/1/versions"
},
{
"value": "4.20.2+7-g1badcf5035-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.20.2+7-g1badcf5035-2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "xen",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.20.3+127-gc42374a105-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "4.20.0+68-g35cb38b222-1",
"evidence": "/affected/2/versions"
},
{
"value": "4.20.2+37-g61ff35323e-1",
"evidence": "/affected/2/versions"
},
{
"value": "4.20.2+7-g1badcf5035-1",
"evidence": "/affected/2/versions"
},
{
"value": "4.20.2+7-g1badcf5035-2",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "low",
"structured": {
"id": "DEBIAN-CVE-2025-54505",
"aliases": [
"DEBIAN-CVE-2025-54505"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.17.7-0+deb12u1"
}
]
}
],
"package": {
"name": "xen",
"purl": "pkg:deb/debian/xen?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"4.17.1+2-gb773c48e36-1",
"4.17.2+55-g0b56bed864-1",
"4.17.2+76-ge1f9cb16e2-1",
"4.17.2+76-ge1f9cb16e2-1~deb12u1",
"4.17.2-1",
"4.17.3+10-g091466ba55-1",
"4.17.3+10-g091466ba55-1.1",
"4.17.3+10-g091466ba55-1.1~exp1",
"4.17.3+10-g091466ba55-1.1~exp2",
"4.17.3+10-g091466ba55-1~deb12u1",
"4.17.3+36-g54dacb5c02-1",
"4.17.5+23-ga4e5191dc0-1",
"4.17.5+23-ga4e5191dc0-1+deb12u1",
"4.17.5+72-g01140da4e8-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54505.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.20.3+127-gc42374a105-0+deb13u1"
}
]
}
],
"package": {
"name": "xen",
"purl": "pkg:deb/debian/xen?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"4.20.0+68-g35cb38b222-1",
"4.20.2+37-g61ff35323e-0+deb13u1",
"4.20.2+37-g61ff35323e-1",
"4.20.2+7-g1badcf5035-0+deb13u1",
"4.20.2+7-g1badcf5035-1",
"4.20.2+7-g1badcf5035-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54505.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.20.3+127-gc42374a105-1"
}
]
}
],
"package": {
"name": "xen",
"purl": "pkg:deb/debian/xen?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"4.20.0+68-g35cb38b222-1",
"4.20.2+37-g61ff35323e-1",
"4.20.2+7-g1badcf5035-1",
"4.20.2+7-g1badcf5035-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54505.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T09:47:32.691964309Z",
"provider": "osv",
"upstream": [
"CVE-2025-54505"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2025-54505"
]
},
"related_cves": [
{
"value": "CVE-2025-54505",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 327661,
"published_at": "2026-04-27T16:16:28.78+00:00"
}