Vulnerability-Lookup

CVE-2023-20511 (GCVE-0-2023-20511)

Vulnerability from cvelistv5 – Published: 2026-08-31 18:15 – Updated: 2026-09-01 14:46

Summary

Release of an invalid pointer in the AMD kernel mode driver (KMD) could allow a privileged attacker to create a double free condition potentially leading to arbitrary code execution.

Severity

6.4 (Medium)


                        
                          CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-01 03:56 UTC

CWE

CWE-763 - Release of Invalid Pointer or Reference

Assigner

AMD CNA under the mitre root

CNA scorecard C 63/100 over 74 records in the last 180 days details

References

1 reference

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

Impacted products

2 products

Vendor	Product	Version	CPE status
AMD	AMD Radeon™ Instinct™ MI25 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

2026-08-31 16:45

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-20511",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-01T03:56:25.992251Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-01T14:46:10.328Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "product": "AMD Radeon\u2122 Instinct\u2122 MI25 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"
            }
          ]
        }
      ],
      "datePublic": "2026-08-31T16:45:52.118Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Release of an invalid pointer in the AMD kernel mode driver (KMD) could allow a privileged attacker to create a double free condition potentially leading to arbitrary code execution.\u003cbr\u003e"
            }
          ],
          "value": "Release of an invalid pointer in the AMD kernel mode driver (KMD) could allow a privileged attacker to create a double free condition potentially leading to arbitrary code execution."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-763",
              "description": "CWE-763  Release of Invalid Pointer or Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-31T18:15:06.410Z",
        "orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
        "shortName": "AMD"
      },
      "references": [
        {
          "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "AMD PSIRT Automation 1.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
    "assignerShortName": "AMD",
    "cveId": "CVE-2023-20511",
    "datePublished": "2026-08-31T18:15:06.410Z",
    "dateReserved": "2022-10-27T18:53:39.735Z",
    "dateUpdated": "2026-09-01T14:46:10.328Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-20511",
      "date": "2026-10-17",
      "epss": "0.00233",
      "percentile": "0.13148"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "affected",
                "product": "AMD Radeon\u2122 Instinct\u2122 MI25 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": "Release of an invalid pointer in the AMD kernel mode driver (KMD) could allow a privileged attacker to create a double free condition potentially leading to arbitrary code execution."
          }
        ],
        "id": "CVE-2023-20511",
        "lastModified": "2026-09-03T16:37:52.170",
        "metrics": {
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 6.4,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 0.5,
              "impactScore": 5.9,
              "source": "psirt@amd.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2023-20511",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-01T03:56:25.992251Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-08-31T19:16:44.380",
        "references": [
          {
            "source": "psirt@amd.com",
            "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html"
          }
        ],
        "sourceIdentifier": "psirt@amd.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-763"
              }
            ],
            "source": "psirt@amd.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-20511",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-09-01T03:56:25.992251Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-01T14:46:06.767Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "affected",
              "product": "AMD Radeon\u2122 Instinct\u2122 MI25 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"
                }
              ]
            }
          ],
          "datePublic": "2026-08-31T16:45:52.118Z",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "Release of an invalid pointer in the AMD kernel mode driver (KMD) could allow a privileged attacker to create a double free condition potentially leading to arbitrary code execution.\u003cbr\u003e"
                }
              ],
              "value": "Release of an invalid pointer in the AMD kernel mode driver (KMD) could allow a privileged attacker to create a double free condition potentially leading to arbitrary code execution."
            }
          ],
          "metrics": [
            {
              "cvssV3_0": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 6.4,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
                "version": "3.0"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-763",
                  "description": "CWE-763  Release of Invalid Pointer or Reference",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-31T18:15:06.410Z",
            "orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
            "shortName": "AMD"
          },
          "references": [
            {
              "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "x_generator": {
            "engine": "AMD PSIRT Automation 1.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
        "assignerShortName": "AMD",
        "cveId": "CVE-2023-20511",
        "datePublished": "2026-08-31T18:15:06.410Z",
        "dateReserved": "2022-10-27T18:53:39.735Z",
        "dateUpdated": "2026-09-01T14:46:10.328Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2023-20511

Vulnerability from fkie_nvd - Published: 2026-08-31 19:16 - Updated: 2026-09-03 16:37

Severity

6.4 (Medium) - CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

Summary

Release of an invalid pointer in the AMD kernel mode driver (KMD) could allow a privileged attacker to create a double free condition potentially leading to arbitrary code execution.

References

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

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "affected",
          "product": "AMD Radeon\u2122 Instinct\u2122 MI25 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": "Release of an invalid pointer in the AMD kernel mode driver (KMD) could allow a privileged attacker to create a double free condition potentially leading to arbitrary code execution."
    }
  ],
  "id": "CVE-2023-20511",
  "lastModified": "2026-09-03T16:37:52.170",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 0.5,
        "impactScore": 5.9,
        "source": "psirt@amd.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-20511",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-01T03:56:25.992251Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-31T19:16:44.380",
  "references": [
    {
      "source": "psirt@amd.com",
      "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html"
    }
  ],
  "sourceIdentifier": "psirt@amd.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-763"
        }
      ],
      "source": "psirt@amd.com",
      "type": "Secondary"
    }
  ]
}

GHSA-98R8-GV3J-W3M9

Vulnerability from github – Published: 2026-08-31 21:32 – Updated: 2026-08-31 21:32

Details

Release of an invalid pointer in the AMD kernel mode driver (KMD) could allow a privileged attacker to create a double free condition potentially leading to arbitrary code execution.

Severity

6.4 (Medium)


                  
                    CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-20511"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-763"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-31T19:16:44Z",
    "severity": "MODERATE"
  },
  "details": "Release of an invalid pointer in the AMD kernel mode driver (KMD) could allow a privileged attacker to create a double free condition potentially leading to arbitrary code execution.",
  "id": "GHSA-98r8-gv3j-w3m9",
  "modified": "2026-08-31T21:32:09Z",
  "published": "2026-08-31T21:32:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20511"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2023-20511

Vulnerability from gsd - Updated: 2023-12-13 01:20

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-2023-20511

Aliases

CVE-2023-20511

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-20511",
    "id": "GSD-2023-20511"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-20511"
      ],
      "id": "GSD-2023-20511",
      "modified": "2023-12-13T01:20:28.730426Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2023-20511",
        "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-2023-20511.

CVE-2023-20511

Known affected: 5 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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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-2023-20511 (GCVE-0-2023-20511)

FKIE_CVE-2023-20511

GHSA-98R8-GV3J-W3M9

GSD-2023-20511

WID-SEC-W-2025-1767

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour