Medium
amd64-microcode — security advisory
Insufficient Granularity of Access Control in SEV firmware can allow a privileged attacker to create a SEV-ES Guest to attack SNP guest, potentially resulting in a loss of confidentiality.
- Products
- amd64-microcode
- Affected versions
- 1.20120910-3, 2.20131007.1+really20130710.1, 2.20141028.1, 2.20160316.1, 3.20160316.3, 3.20171205.1, 3.20180524.1~ubuntu0.14.04.1, 3.20180524.1~ubuntu0.14.04.2+really20130710.1, 3.20180524.1~ubuntu0.14.04.2+really20130710.1ubuntu1, 3.20180524.1~ubuntu0.16.04.1, 3.20180524.1~ubuntu0.16.04.2, 3.20180524.1~ubuntu0.18.04.1, 3.20180524.1~ubuntu0.18.04.2, 3.20181128.1ubuntu2, 3.20191021.1+really3.20180524.1~ubuntu0.16.04.2, 3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm1, 3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm2, 3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm3, 3.20191021.1+really3.20181128.1~ubuntu0.18.04.1, 3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm1, 3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm2, 3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm3, 3.20191021.1ubuntu0.16.04.1, 3.20191021.1ubuntu0.18.04.2, 3.20191021.1ubuntu1, 3.20191218.1ubuntu1, 3.20191218.1ubuntu1.1, 3.20191218.1ubuntu1.2, 3.20191218.1ubuntu1.3, 3.20191218.1ubuntu2, 3.20191218.1ubuntu2.1, 3.20191218.1ubuntu2.2, 3.20191218.1ubuntu2.3, 3.20230808.1.1ubuntu1, 3.20231019.1ubuntu1, 3.20231019.1ubuntu2, 3.20231019.1ubuntu2.1, 3.20240820.1ubuntu1, 3.20250311.1ubuntu0.24.04.1, 3.20250311.1ubuntu1, 3.20250708.1ubuntu1, 3.20250708.1ubuntu2, 3.20251202.1ubuntu0.24.04.1, 3.20251202.1ubuntu0.25.10.1, 3.20251202.1ubuntu1, 3.20251202.1ubuntu2
- Fixed versions
- Not specified
- CVEs
- CVE-2025-48514
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:29 UTC · Revision 1
Source evidence
Insufficient Granularity of Access Control in SEV firmware can allow a privileged attacker to create a SEV-ES Guest to attack SNP guest, potentially resulting in a loss of confidentiality.
osv:UBUNTU-CVE-2025-48514
amd64-microcode
Fixed versions: Not specified
amd64-microcode
Fixed versions: Not specified
amd64-microcode
Fixed versions: Not specified
amd64-microcode
Fixed versions: Not specified
amd64-microcode
Fixed versions: Not specified
amd64-microcode
Fixed versions: Not specified
amd64-microcode
Fixed versions: Not specified
amd64-microcode
Fixed versions: Not specified
amd64-microcode
Fixed versions: Not specified
Complete source record
{
"id": "60fed4a80a7aaa0f18c6bd0c67c90bda0368191bf073f68bddf630fc5b69bf6f",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-48514",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-48514",
"summary": "Insufficient Granularity of Access Control in SEV firmware can allow a privileged attacker to create a SEV-ES Guest to attack SNP guest, potentially resulting in a loss of confidentiality.",
"evidence": "osv:UBUNTU-CVE-2025-48514",
"products": [
{
"name": {
"value": "amd64-microcode",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.20120910-3",
"evidence": "/affected/0/versions"
},
{
"value": "2.20131007.1+really20130710.1",
"evidence": "/affected/0/versions"
},
{
"value": "3.20180524.1~ubuntu0.14.04.1",
"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
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{
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"evidence": "/affected/1/versions"
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{
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"evidence": "/affected/1/versions"
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{
"value": "3.20180524.1~ubuntu0.16.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "3.20191021.1ubuntu0.16.04.1",
"evidence": "/affected/1/versions"
},
{
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"evidence": "/affected/1/versions"
},
{
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{
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{
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{
"name": {
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"affected_versions": [
{
"value": "3.20160316.3",
"evidence": "/affected/2/versions"
},
{
"value": "3.20171205.1",
"evidence": "/affected/2/versions"
},
{
"value": "3.20180524.1~ubuntu0.18.04.1",
"evidence": "/affected/2/versions"
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{
"value": "3.20180524.1~ubuntu0.18.04.2",
"evidence": "/affected/2/versions"
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{
"value": "3.20191021.1ubuntu0.18.04.2",
"evidence": "/affected/2/versions"
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{
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{
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{
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{
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},
{
"name": {
"value": "amd64-microcode",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.20181128.1ubuntu2",
"evidence": "/affected/3/versions"
},
{
"value": "3.20191021.1ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "3.20191218.1ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "3.20191218.1ubuntu1.1",
"evidence": "/affected/3/versions"
},
{
"value": "3.20191218.1ubuntu1.2",
"evidence": "/affected/3/versions"
},
{
"value": "3.20191218.1ubuntu1.3",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
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"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.20191218.1ubuntu2",
"evidence": "/affected/4/versions"
},
{
"value": "3.20191218.1ubuntu2.1",
"evidence": "/affected/4/versions"
},
{
"value": "3.20191218.1ubuntu2.2",
"evidence": "/affected/4/versions"
},
{
"value": "3.20191218.1ubuntu2.3",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "amd64-microcode",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.20230808.1.1ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "3.20231019.1ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "3.20231019.1ubuntu2",
"evidence": "/affected/5/versions"
},
{
"value": "3.20231019.1ubuntu2.1",
"evidence": "/affected/5/versions"
},
{
"value": "3.20250311.1ubuntu0.24.04.1",
"evidence": "/affected/5/versions"
},
{
"value": "3.20251202.1ubuntu0.24.04.1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "amd64-microcode",
"evidence": "/affected/6/package/name"
},
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"affected_versions": [
{
"value": "3.20240820.1ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "3.20250311.1ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "3.20250708.1ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "3.20251202.1ubuntu0.25.10.1",
"evidence": "/affected/6/versions"
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]
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{
"name": {
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"evidence": "/affected/7/package/name"
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{
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},
{
"name": {
"value": "amd64-microcode",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "3.20250708.1ubuntu1",
"evidence": "/affected/8/versions"
},
{
"value": "3.20250708.1ubuntu2",
"evidence": "/affected/8/versions"
},
{
"value": "3.20251202.1ubuntu1",
"evidence": "/affected/8/versions"
},
{
"value": "3.20251202.1ubuntu2",
"evidence": "/affected/8/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2025-48514",
"aliases": [
"UBUNTU-CVE-2025-48514"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode?arch=source&distro=trusty",
"ecosystem": "Ubuntu:14.04:LTS"
},
"versions": [
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"2.20131007.1+really20130710.1",
"3.20180524.1~ubuntu0.14.04.1",
"3.20180524.1~ubuntu0.14.04.2+really20130710.1",
"3.20180524.1~ubuntu0.14.04.2+really20130710.1ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-48514.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20180524.1~ubuntu0.14.04.2+really20130710.1ubuntu1"
}
]
}
},
{
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],
"package": {
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"purl": "pkg:deb/ubuntu/amd64-microcode?arch=source&distro=esm-infra%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
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"2.20160316.1",
"3.20180524.1~ubuntu0.16.04.1",
"3.20180524.1~ubuntu0.16.04.2",
"3.20191021.1ubuntu0.16.04.1",
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"3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm1",
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"database_specific": {
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},
"ecosystem_specific": {
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{
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],
"package": {
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"purl": "pkg:deb/ubuntu/amd64-microcode?arch=source&distro=esm-infra%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
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"3.20171205.1",
"3.20180524.1~ubuntu0.18.04.1",
"3.20180524.1~ubuntu0.18.04.2",
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},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm3"
}
]
}
},
{
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{
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{
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}
]
}
],
"package": {
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"3.20181128.1ubuntu2",
"3.20191021.1ubuntu1",
"3.20191218.1ubuntu1",
"3.20191218.1ubuntu1.1",
"3.20191218.1ubuntu1.2",
"3.20191218.1ubuntu1.3"
],
"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20191218.1ubuntu1.3"
}
]
}
},
{
"ranges": [
{
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}
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}
],
"package": {
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
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"3.20191218.1ubuntu2.1",
"3.20191218.1ubuntu2.2",
"3.20191218.1ubuntu2.3"
],
"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "amd64-microcode",
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}
]
}
},
{
"ranges": [
{
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{
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}
]
}
],
"package": {
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
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"3.20231019.1ubuntu1",
"3.20231019.1ubuntu2",
"3.20231019.1ubuntu2.1",
"3.20250311.1ubuntu0.24.04.1",
"3.20251202.1ubuntu0.24.04.1"
],
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},
"ecosystem_specific": {
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{
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},
{
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}
]
}
],
"package": {
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
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"database_specific": {
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},
"ecosystem_specific": {
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{
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]
}
},
{
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],
"package": {
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"3.20251202.1ubuntu2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-48514.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20251202.1ubuntu2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"3.20250708.1ubuntu1",
"3.20250708.1ubuntu2",
"3.20251202.1ubuntu1",
"3.20251202.1ubuntu2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-48514.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20251202.1ubuntu2"
}
]
}
}
],
"modified": "2026-10-17T12:58:36.188615302Z",
"provider": "osv",
"upstream": [
"CVE-2025-48514"
],
"references": [
"https://ubuntu.com/security/CVE-2025-48514",
"https://www.cve.org/CVERecord?id=CVE-2025-48514",
"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html"
]
},
"related_cves": [
{
"value": "CVE-2025-48514",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 358849,
"published_at": "2026-02-10T20:16:00+00:00"
}