CVE-2021-26377
Estado: AplazadaMedia (4.1)—
Insufficient parameter validation while allocating process space in the Trusted OS (TOS) may allow for a malicious userspace process to trigger an integer overflow, leading to a potential denial of service.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 4.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.15%
- Percentil entre todas las CVEs puntuadas: 4
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
CWE
- CWE-190
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-26377",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-26377",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-09-08T13:46:56.766235Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "psirt@amd.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 4.1,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 0.5
}
]
},
"affected": [
{
"source": "psirt@amd.com",
"affectedData": [
{
"vendor": "AMD",
"product": "AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.8"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ Threadripper™ 3000 Series Processors",
"versions": [
{
"status": "unaffected",
"version": "CastlePeakPI-SP3r3 1.0.0.7"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors",
"versions": [
{
"status": "unaffected",
"version": "CastlePeakWSPI-sWRX8 1.0.0.9"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.8"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors",
"versions": [
{
"status": "unaffected",
"version": "ChagallWSPI-sWRX8 1.0.0.2"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ 5000 Series Desktop Processors",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4v2 PI 1.2.0.5"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics",
"versions": [
{
"status": "unaffected",
"version": "PicassoPI-FP5 1.0.0.E"
},
{
"status": "unaffected",
"version": "PollockPI-FT5 1.0.0.4"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.8"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ 3000 Series Desktop Processors",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4PI 1.0.0.9/ ComboAM4 V2 PI 1.2.0.8"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ 7030 Series Mobile processors with Radeon™ Graphics",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.8"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ 4000 Series Desktop Processors",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4v2 PI 1.2.0.5"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics",
"versions": [
{
"status": "unaffected",
"version": "RenoirPI-FP6 1.0.0.8"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ 5000 Series Desktop Processors",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4 V2 PI 1.2.0.8"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics",
"versions": [
{
"status": "unaffected",
"version": "RembrandtPI-FP7_0.0.8.0 RC1"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ Embedded R1000 Series Processors",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP5_1.2.0.A"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ Embedded R2000 Series Processors",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedR2KPI-FP5_1.0.0.2"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ Embedded 5000 Series Processors",
"versions": [
{
"status": "unaffected",
"version": "EmbAM4PI 1.0.0.2"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ Embedded V1000 Series Processors",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP5_1.2.0.A"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ Embedded V2000 Series Processors",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP6_1.0.0.6"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Ryzen™ Embedded V3000 Series Processors",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP7r2_1000"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Radeon™ RX 5000 Series Graphics Products",
"versions": [
{
"status": "unaffected",
"version": "AMD Software: Adrenalin Edition 24.7.1 (24.10.29.01)"
},
{
"status": "unaffected",
"version": "AMD Software: PRO Edition 24.Q2 (24.10.20)"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Radeon™ PRO W5000 Series Graphics Products",
"versions": [
{
"status": "unaffected",
"version": "AMD Software: PRO Edition 24.Q2 (24.10.20)"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Radeon™ RX 6000 Series Graphics Products",
"versions": [
{
"status": "unaffected",
"version": "AMD Software: Adrenalin Edition 24.7.1 (24.10.29.01)"
},
{
"status": "unaffected",
"version": "AMD Software: PRO Edition 24.Q2 (24.10.20)"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Radeon™ PRO W6000 Series Graphics Products",
"versions": [
{
"status": "unaffected",
"version": "AMD Software: PRO Edition 24.Q2 (24.10.20)"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Radeon™ Instinct™ MI25 Graphics Products",
"versions": [
{
"status": "unaffected",
"version": "Contact your AMD Customer Engineering representative"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Radeon™ PRO V520 Graphics Products",
"versions": [
{
"status": "unaffected",
"version": "Contact your AMD Customer Engineering representative"
}
],
"defaultStatus": "affected"
},
{
"vendor": "AMD",
"product": "AMD Radeon™ PRO V620 Graphics Products",
"versions": [
{
"status": "unaffected",
"version": "Contact your AMD Customer Engineering representative"
}
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-09-06T16:15:29.973",
"references": [
{
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html",
"source": "psirt@amd.com"
},
{
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html",
"source": "psirt@amd.com"
},
{
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html",
"source": "psirt@amd.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@amd.com",
"description": [
{
"lang": "en",
"value": "CWE-190"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Insufficient parameter validation while allocating process space in the Trusted OS (TOS) may allow for a malicious userspace process to trigger an integer overflow, leading to a potential denial of service."
}
],
"lastModified": "2026-06-17T03:43:16.507",
"sourceIdentifier": "psirt@amd.com"
}