Vulnerability-Lookup

CVE-2021-26383 (GCVE-0-2021-26383)

Vulnerability from cvelistv5 – Published: 2025-09-05 23:21 – Updated: 2025-09-08 13:49

Summary

Insufficient bounds checking in AMD TEE (Trusted Execution Environment) could allow an attacker with a compromised userspace to invoke a command with malformed arguments leading to out of bounds memory access, potentially resulting in loss of integrity or availability.

Severity

7.9 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-09-08 13:49 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

AMD mitre root

References

3 references

URL	Tags
https://www.amd.com/en/resources/product-security…
https://www.amd.com/en/resources/product-security…
https://www.amd.com/en/resources/product-security…

Impacted products

14 products

Vendor	Product	Version	CPE status
AMD	AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics	Unaffected: CezannePI-FP6 1.0.0.6	guessed
AMD	AMD Ryzen™ 4000 Series Desktop Processors	Unaffected: ComboAM4v2 PI 1.2.0.5	guessed
AMD	AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics	Unaffected: CezannePI-FP6 1.0.0.6	guessed
AMD	AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics	Unaffected: ComboAM4v2 PI 1.2.0.5	guessed
AMD	AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics	Unaffected: RenoirPI-FP6 1.0.0.7	guessed
AMD	AMD Ryzen™ Embedded V2000 Series Processors	Unaffected: EmbeddedPI-FP6_1.0.0.6	guessed
AMD	AMD Radeon™ RX 5000 Series Graphics Products	Unaffected: AMD Software: Adrenalin Edition 23.2.1 (22.40.01.45)	guessed
AMD	AMD Radeon™ RX 6000 Series Graphics Products	Unaffected: AMD Software: Adrenalin Edition 23.2.1 (22.40.01.45)	guessed
AMD	AMD Radeon™ PRO W5000 Series Graphics Products	Unaffected: AMD Software: PRO Edition 23.Q1 (22.40.37.05)	guessed
AMD	AMD Radeon™ PRO W6000 Series Graphics Products	Unaffected: AMD Software: PRO Edition 23.Q1 (22.40.37.05)	guessed
AMD	AMD Instinct™ MI210	Unaffected: ROCm 6.4	guessed
AMD	AMD Instinct™ MI250	Unaffected: ROCm 6.4	guessed
AMD	AMD Radeon™ PRO V520 Graphics Products	Unaffected: Contact your AMD Customer Engineering representative	guessed
AMD	AMD Radeon™ PRO V620 Graphics Products	Unaffected: Contact your AMD Customer Engineering representative	guessed

Date Public

2025-09-05 23:00

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2021-26383

Vulnerability from fkie_nvd - Published: 2025-09-06 00:15 - Updated: 2026-06-17 03:43

Severity

7.9 (High) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

Summary

References

	URL	Tags
	psirt@amd.com	https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html
	psirt@amd.com	https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html
	psirt@amd.com	https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 4000 Series Mobile Processors with Radeon\u2122 Graphics",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "RenoirPI-FP6 1.0.0.7"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 Embedded V2000 Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbeddedPI-FP6_1.0.0.6"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Radeon\u2122 RX 5000 Series Graphics Products",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "AMD Software: Adrenalin Edition 23.2.1 (22.40.01.45)"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Radeon\u2122 RX 6000 Series Graphics Products",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "AMD Software: Adrenalin Edition 23.2.1 (22.40.01.45)"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Radeon\u2122 PRO W5000 Series Graphics Products",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "AMD Software: PRO Edition 23.Q1 (22.40.37.05)"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Radeon\u2122 PRO W6000 Series Graphics Products",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "AMD Software: PRO Edition 23.Q1 (22.40.37.05)"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Instinct\u2122 MI210",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "ROCm 6.4"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Instinct\u2122 MI250",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "ROCm 6.4"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Radeon\u2122 PRO V520 Graphics Products",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "Contact your AMD Customer Engineering representative"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Radeon\u2122 PRO V620 Graphics Products",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "Contact your AMD Customer Engineering representative"
            }
          ]
        }
      ],
      "source": "psirt@amd.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient bounds checking in AMD TEE (Trusted Execution Environment) could allow an attacker with a compromised userspace to invoke a command with malformed arguments leading to out of bounds memory access, potentially resulting in loss of integrity or availability."
    }
  ],
  "id": "CVE-2021-26383",
  "lastModified": "2026-06-17T03:43:17.503",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.9,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.5,
        "impactScore": 5.8,
        "source": "psirt@amd.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-26383",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-09-08T13:49:47.320770Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-09-06T00:15:33.930",
  "references": [
    {
      "source": "psirt@amd.com",
      "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"
    }
  ],
  "sourceIdentifier": "psirt@amd.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "psirt@amd.com",
      "type": "Secondary"
    }
  ]
}

GHSA-89MM-WX6J-WPMG

Vulnerability from github – Published: 2025-09-06 00:30 – Updated: 2025-09-06 00:30

Details

Severity

7.9 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-26383"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-06T00:15:33Z",
    "severity": "HIGH"
  },
  "details": "Insufficient bounds checking in AMD TEE (Trusted Execution Environment) could allow an attacker with a compromised userspace to invoke a command with malformed arguments leading to out of bounds memory access, potentially resulting in loss of integrity or availability.",
  "id": "GHSA-89mm-wx6j-wpmg",
  "modified": "2025-09-06T00:30:24Z",
  "published": "2025-09-06T00:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26383"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2021-26383

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.

Aliases

CVE-2021-26383

Aliases

CVE-2021-26383

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-26383",
    "id": "GSD-2021-26383"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-26383"
      ],
      "id": "GSD-2021-26383",
      "modified": "2023-12-13T01:23:33.136982Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-26383",
        "STATE": "RESERVED"
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
          }
        ]
      }
    }
  }
}

WID-SEC-W-2025-1767

Vulnerability from csaf_certbund - Published: 2025-08-12 22:00 - Updated: 2026-08-31 22:00

Summary

AMD Radeon Graphics Products: Mehrere Schwachstellen

Severity

Hoch

Scope

22 vulnerabilities in this advisory, including CVE-2021-26383.

CVE-2021-26383

Known affected: 5 products

Open the full advisory

WID-SEC-W-2025-1770

Vulnerability from csaf_certbund - Published: 2025-08-12 22:00 - Updated: 2026-03-25 23:00

Summary

AMD Prozessoren: Mehrere Schwachstellen

Severity

Mittel

Scope

25 vulnerabilities in this advisory, including CVE-2021-26383.

CVE-2021-26383

Known affected: 10 products

Open the full advisory

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.

Detection rules are retrieved from Rulezet.

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.

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.

Action not permitted

CVE-2021-26383 (GCVE-0-2021-26383)

FKIE_CVE-2021-26383

GHSA-89MM-WX6J-WPMG

GSD-2021-26383

WID-SEC-W-2025-1767

WID-SEC-W-2025-1770

Tags

Sightings

Nomenclature

Related by attack behaviour