amd64-microcode vulnerabilities
Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos, and Flavien Solt discovered that some AMD processors may allow an attacker to infer data from previous stores, potentially resulting in the leakage of privileged information. A local attacker could possibly use this to expose sensitive information. (CVE-2024-36350, CVE-2024-36357) It was discovered that some AMD Zen 5 processors supporting RDSEED instruction did not properly handle entropy, potentially resulting in the consumption of insufficiently random values. A local attacker could possibly use this issue to influence the values returned by the RDSEED instruction causing loss of confidentiality and integrity. (CVE-2025-62626)
- Products
- amd64-microcode
- Affected versions
- 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
- Fixed versions
- 3.20251202.1ubuntu0.24.04.1, 3.20251202.1ubuntu0.25.10.1
- CVEs
- CVE-2024-36350, CVE-2024-36357, CVE-2025-62626
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:26 UTC · Revision 1
Source evidence
Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos, and Flavien Solt discovered that some AMD processors may allow an attacker to infer data from previous stores, potentially resulting in the leakage of privileged information. A local attacker could possibly use this to expose sensitive information. (CVE-2024-36350, CVE-2024-36357) It was discovered that some AMD Zen 5 processors supporting RDSEED instruction did not properly handle entropy, potentially resulting in the consumption of insufficiently random values. A local attacker could possibly use this issue to influence the values returned by the RDSEED instruction causing loss of confidentiality and integrity. (CVE-2025-62626)
osv:USN-8475-1
amd64-microcode
Fixed versions: 3.20251202.1ubuntu0.24.04.1
amd64-microcode
Fixed versions: 3.20251202.1ubuntu0.25.10.1
Complete source record
{
"id": "1a4782a3b306e41ad0841e8495c32927bb83d5900dbf13f8fd0e368b74a8d4c7",
"url": "https://osv.dev/vulnerability/USN-8475-1",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "amd64-microcode vulnerabilities",
"summary": "Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos, and Flavien Solt discovered that some AMD processors may allow an attacker to infer data from previous stores, potentially resulting in the leakage of privileged information. A local attacker could possibly use this to expose sensitive information. (CVE-2024-36350, CVE-2024-36357) It was discovered that some AMD Zen 5 processors supporting RDSEED instruction did not properly handle entropy, potentially resulting in the consumption of insufficiently random values. A local attacker could possibly use this issue to influence the values returned by the RDSEED instruction causing loss of confidentiality and integrity. (CVE-2025-62626)",
"evidence": "osv:USN-8475-1",
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"package": {
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{
"type": "CVSS_V3",
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{
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{
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},
"ecosystem_specific": {
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{
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"binary_version": "3.20251202.1ubuntu0.24.04.1"
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"availability": "No subscription required"
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},
{
"type": "CVSS_V3",
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},
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{
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],
"availability": "No subscription required"
}
}
],
"modified": "2026-10-17T12:54:58.660591400Z",
"provider": "osv",
"upstream": [
"CVE-2024-36350",
"CVE-2024-36357",
"CVE-2025-62626",
"UBUNTU-CVE-2024-36350",
"UBUNTU-CVE-2024-36357",
"UBUNTU-CVE-2025-62626"
],
"references": [
"https://ubuntu.com/security/notices/USN-8475-1",
"https://ubuntu.com/security/CVE-2024-36350",
"https://ubuntu.com/security/CVE-2024-36357",
"https://ubuntu.com/security/CVE-2025-62626"
]
},
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},
{
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"evidence": "/upstream"
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{
"value": "CVE-2025-62626",
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}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 353608,
"published_at": "2026-06-25T15:09:58+00:00"
}