ubuntu-cve-2025-29943
Vulnerability from osv_ubuntu
Published
2026-01-16 16:15
Modified
2026-06-25 21:40
Summary
Details
Write what were condition within AMD CPUs may allow an admin-privileged attacker to modify the configuration of the CPU pipeline potentially resulting in the corruption of the stack pointer inside an SEV-SNP guest.
Severity
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20180524.1~ubuntu0.14.04.2+really20130710.1ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode@3.20180524.1~ubuntu0.14.04.2+really20130710.1ubuntu1?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.20120910-3",
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode@3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm3?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
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}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.20141028.1",
"2.20160316.1",
"3.20180524.1~ubuntu0.16.04.1",
"3.20180524.1~ubuntu0.16.04.2",
"3.20191021.1ubuntu0.16.04.1",
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode@3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm3?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
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{
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}
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"versions": [
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"3.20171205.1",
"3.20180524.1~ubuntu0.18.04.1",
"3.20180524.1~ubuntu0.18.04.2",
"3.20191021.1ubuntu0.18.04.2",
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20191218.1ubuntu1.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode@3.20191218.1ubuntu1.3?arch=source\u0026distro=focal"
},
"ranges": [
{
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"versions": [
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"3.20191021.1ubuntu1",
"3.20191218.1ubuntu1",
"3.20191218.1ubuntu1.1",
"3.20191218.1ubuntu1.2",
"3.20191218.1ubuntu1.3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20191218.1ubuntu2.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode@3.20191218.1ubuntu2.3?arch=source\u0026distro=jammy"
},
"ranges": [
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],
"versions": [
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"3.20191218.1ubuntu2.1",
"3.20191218.1ubuntu2.2",
"3.20191218.1ubuntu2.3"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20251202.1ubuntu0.24.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode@3.20251202.1ubuntu0.24.04.1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.20251202.1ubuntu0.24.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.20230808.1.1ubuntu1",
"3.20231019.1ubuntu1",
"3.20231019.1ubuntu2",
"3.20231019.1ubuntu2.1",
"3.20250311.1ubuntu0.24.04.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20251202.1ubuntu0.25.10.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode@3.20251202.1ubuntu0.25.10.1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.20251202.1ubuntu0.25.10.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.20240820.1ubuntu1",
"3.20250311.1ubuntu1",
"3.20250708.1ubuntu1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "amd64-microcode",
"binary_version": "3.20251202.1ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "amd64-microcode",
"purl": "pkg:deb/ubuntu/amd64-microcode@3.20251202.1ubuntu1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.20251202.1ubuntu1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.20250708.1ubuntu1",
"3.20250708.1ubuntu2"
]
}
],
"aliases": [],
"details": "Write what were condition within AMD CPUs may allow an admin-privileged attacker to modify the configuration of the CPU pipeline potentially resulting in the corruption of the stack pointer inside an SEV-SNP guest.",
"id": "UBUNTU-CVE-2025-29943",
"modified": "2026-06-25T21:40:28Z",
"published": "2026-01-16T16:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-29943"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-29943"
},
{
"type": "REPORT",
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3027.html"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2025-29943"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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