CVE-2021-46779 (GCVE-0-2021-46779)
Vulnerability from cvelistv5 – Published: 2023-01-10 20:56 – Updated: 2025-04-09 14:47
VLAI
EPSS
VEX
Summary
Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential loss of integrity and availability.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-09 14:47 UTC
CWE
- n/a
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.amd.com/en/corporate/product-security… | vendor-advisory |
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| AMD | 1st Gen EPYC |
Affected:
various
|
guessed | |
| AMD | 2nd Gen EPYC |
Affected:
various
|
guessed | |
| AMD | 3rd Gen EPYC |
Affected:
various
|
guessed |
Date Public
2023-01-10 17:30
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T05:17:42.420Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2021-46779",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-09T14:47:15.527346Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-04-09T14:47:59.765Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageName": "AGESA",
"platforms": [
"x86"
],
"product": "1st Gen EPYC",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various "
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "AGESA",
"platforms": [
"x86"
],
"product": "2nd Gen EPYC",
"vendor": " AMD",
"versions": [
{
"status": "affected",
"version": "various "
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "AGESA",
"platforms": [
"x86"
],
"product": "3rd Gen EPYC",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various "
}
]
}
],
"datePublic": "2023-01-10T17:30:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential loss of integrity and availability.\u003cbr\u003e"
}
],
"value": "Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential loss of integrity and availability.\n"
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-01-11T07:01:59.843Z",
"orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
"shortName": "AMD"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032"
}
],
"source": {
"advisory": "AMD-SB-1032",
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
"assignerShortName": "AMD",
"cveId": "CVE-2021-46779",
"datePublished": "2023-01-10T20:56:52.789Z",
"dateReserved": "2022-03-31T16:50:27.875Z",
"dateUpdated": "2025-04-09T14:47:59.765Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-46779",
"date": "2026-09-24",
"epss": "0.00176",
"percentile": "0.06225"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"packageName": "AGESA",
"platforms": [
"x86"
],
"product": "1st Gen EPYC",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various "
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "AGESA",
"platforms": [
"x86"
],
"product": "2nd Gen EPYC",
"vendor": " AMD",
"versions": [
{
"status": "affected",
"version": "various "
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "AGESA",
"platforms": [
"x86"
],
"product": "3rd Gen EPYC",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various "
}
]
}
],
"source": "psirt@amd.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:amd:romepi_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "56013C45-044C-40B0-9503-7E3928602803",
"versionEndExcluding": "1.0.0.c",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:amd:romepi:-:*:*:*:*:*:*:*",
"matchCriteriaId": "B936879F-731E-4991-ACBB-16643F629B41",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:amd:milanpi_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B11959F6-2A87-48A4-AD17-16A6B00C6BFA",
"versionEndExcluding": "1.0.0.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:amd:milanpi:-:*:*:*:*:*:*:*",
"matchCriteriaId": "1F64A4AA-A66B-4B2E-B8F1-F332E3945903",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:amd:naplespi_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "BB1EE9F8-6AA6-48E1-A5C3-79A1FC70C821",
"versionEndExcluding": "1.0.0.g",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:amd:naplespi:-:*:*:*:*:*:*:*",
"matchCriteriaId": "9C479ABD-FE0C-4C08-B849-7BD516F03733",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential loss of integrity and availability.\n"
},
{
"lang": "es",
"value": "Una validaci\u00f3n de entrada insuficiente en la llamada al sistema SVC_ECC_PRIMITIVE en una aplicaci\u00f3n de usuario comprometida o ABL puede permitir que un atacante corrompa la memoria del sistema operativo ASP (AMD Secure Processor), lo que puede provocar una posible p\u00e9rdida de integridad y disponibilidad."
}
],
"id": "CVE-2021-46779",
"lastModified": "2026-06-17T04:15:33.540",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.2,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-46779",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-09T14:47:15.527346Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-01-11T08:15:13.213",
"references": [
{
"source": "psirt@amd.com",
"tags": [
"Vendor Advisory"
],
"url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032"
}
],
"sourceIdentifier": "psirt@amd.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-29T04:23:21+00:00",
"cve": "CVE-2021-46779",
"id": "CVE-2021-46779",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2021-46779",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-46779.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T05:17:42.420Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2021-46779",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-09T14:47:15.527346Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-04-09T14:47:53.967Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageName": "AGESA",
"platforms": [
"x86"
],
"product": "1st Gen EPYC",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various "
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "AGESA",
"platforms": [
"x86"
],
"product": "2nd Gen EPYC",
"vendor": " AMD",
"versions": [
{
"status": "affected",
"version": "various "
}
]
},
{
"defaultStatus": "unaffected",
"packageName": "AGESA",
"platforms": [
"x86"
],
"product": "3rd Gen EPYC",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various "
}
]
}
],
"datePublic": "2023-01-10T17:30:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential loss of integrity and availability.\u003cbr\u003e"
}
],
"value": "Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential loss of integrity and availability.\n"
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-01-11T07:01:59.843Z",
"orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
"shortName": "AMD"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032"
}
],
"source": {
"advisory": "AMD-SB-1032",
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
"assignerShortName": "AMD",
"cveId": "CVE-2021-46779",
"datePublished": "2023-01-10T20:56:52.789Z",
"dateReserved": "2022-03-31T16:50:27.875Z",
"dateUpdated": "2025-04-09T14:47:59.765Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
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.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…