Vulnerability-Lookup

CVE-2023-20577 (GCVE-0-2023-20577)

Vulnerability from cvelistv5 – Published: 2026-09-02 19:57 – Updated: 2026-09-04 19:56

Summary

A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.

Severity

7.4 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:N/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 2026-09-03 03:56 UTC

CWE

CWE-121 - Stack-based buffer overflow

Assigner

AMD mitre root

References

1 reference

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

Impacted products

35 products

Vendor	Product	Version	CPE status
AMD	2nd Gen AMD EPYC™ Processors	Unaffected: RomePI 1.0.0.H	guessed
AMD	3rd Gen AMD EPYC™ Processors	Unaffected: MilanPI 1.0.0.C	guessed
AMD	4th Gen AMD EPYC™ Processors	Unaffected: GenoaPI 1.0.0.8	guessed
AMD	AMD Instinct™ MI300A	Unaffected: MI300 SR5 PI 1.0.0.1	guessed
AMD	AMD Ryzen™ 3000 Series Desktop Processors	Unaffected: ComboAM4v2 1.2.0.B Unaffected: ComboAM4 1.0.0.B	guessed
AMD	AMD Ryzen™ 5000 Series Desktop Processors	Unaffected: ComboAM4v2 1.2.0.B	guessed
AMD	AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics	Unaffected: ComboAM4v2 1.2.0.B	guessed
AMD	AMD Ryzen™ 7000 Series Processors	Unaffected: ComboAM5 1.0.0.7b	guessed
AMD	AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics	Unaffected: ComboAM4v2 1.2.0.B Unaffected: ComboAM4 1.0.0.B	guessed
AMD	AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics	Unaffected: ComboAM4v2 1.2.0.B	guessed
AMD	AMD Ryzen™ Threadripper™ 3000 Series Processors	Unaffected: CastlePeakPI-SP3r3 1.0.0.A	guessed
AMD	AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors	Unaffected: ChagallWSPI-sWRX8 1.0.0.7 Unaffected: CastlePeakWSPI-sWRX8 1.0.0.C	guessed
AMD	AMD Ryzen™ Threadripper™ PRO 5000WX Processors	Unaffected: ChagallWSPI-sWRX8 1.0.0.7	guessed
AMD	AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics	Unaffected: PicassoPI-FP5 1.0.1.0	guessed
AMD	AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics	Unaffected: PollockPI-FT5 1.0.0.6	guessed
AMD	AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics	Unaffected: PicassoPI-FP5 1.0.1.0	guessed
AMD	AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics	Unaffected: RenoirPI-FP6 1.0.0.D	guessed
AMD	AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics	Unaffected: CezannePI-FP6 1.0.0.F	guessed
AMD	AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics	Unaffected: MendocinoPI-FT6 1.0.0.6	guessed
AMD	AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics	Unaffected: RembrandtPI-FP7 1.0.0.9b	guessed
AMD	AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics	Unaffected: RembrandtPI-FP7 1.0.0.9b	guessed
AMD	AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics	Unaffected: CezannePI-FP6 1.0.0.F	guessed
AMD	AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics	Unaffected: CezannePI-FP6 1.0.0.F	guessed
AMD	AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics	Unaffected: PhoenixPI-FP8-FP7 1.0.0.2	guessed
AMD	AMD Ryzen™ 7045 Series Mobile Processors	Unaffected: DragonRangeFL1PI 1.0.0.3a	guessed
AMD	AMD EPYC™ Embedded 3000	Unaffected: Snowyowl PI 1.1.0.B	guessed
AMD	AMD EPYC™ Embedded 7002	Unaffected: EmbRomePI-SP3 1.0.0.B	guessed
AMD	AMD EPYC™ Embedded 7003	Unaffected: EmbMilanPI-SP3 1.0.0.8	guessed
AMD	AMD EPYC™ Embedded 9003	Unaffected: EmbGenoaPI-SP5 1.0.0.3	guessed
AMD	AMD Ryzen™ Embedded R1000	Unaffected: EmbeddedPI-FP5 1.2.0.A	guessed
AMD	AMD Ryzen™ Embedded R2000	Unaffected: EmbeddedPI-FP5 1.0.0.2	guessed
AMD	AMD Ryzen™ Embedded 5000	Unaffected: EmbAM4PI 1.0.0.4	guessed
AMD	AMD Ryzen™ Embedded V1000	Unaffected: EmbeddedPI-FP5 1.2.0.A	guessed
AMD	AMD Ryzen™ Embedded V2000	Unaffected: EmbeddedPI-FP6 1.0.0.9	guessed
AMD	AMD Ryzen™ Embedded V3000	Unaffected: EmbeddedPI-FP7r2 1.0.0.8	guessed

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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-09-02T20:15:20+00:00",
      "cve": "CVE-2023-20577",
      "id": "CVE-2023-20577",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "59",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "hw: amd: SPI flash RCE",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-20577.json",
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FKIE_CVE-2023-20577

Vulnerability from fkie_nvd - Published: 2026-09-02 20:17 - Updated: 2026-09-04 20:17

Severity

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

Summary

A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.

References

	URL	Tags
	psirt@amd.com	https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "affected",
          "product": "2nd Gen AMD EPYC\u2122 Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "RomePI 1.0.0.H"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "3rd Gen AMD EPYC\u2122 Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "MilanPI 1.0.0.C"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "4th Gen AMD EPYC\u2122 Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "GenoaPI 1.0.0.8"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Instinct\u2122 MI300A",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "MI300 SR5 PI 1.0.0.1"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 3000 Series Desktop Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "ComboAM4v2 1.2.0.B"
            },
            {
              "status": "unaffected",
              "version": "ComboAM4 1.0.0.B"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 5000 Series Desktop Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "ComboAM4v2 1.2.0.B"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 5000 Series Desktop Processors with Radeon\u2122 Graphics",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "ComboAM4v2 1.2.0.B"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 7000 Series Processors",
          "vendor": "AMD",
          "versions": [
            {
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            },
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          "vendor": "AMD",
          "versions": [
            {
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              "version": "ComboAM4v2 1.2.0.B"
            }
          ]
        },
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          "product": "AMD Ryzen\u2122 Threadripper\u2122 3000 Series Processors",
          "vendor": "AMD",
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              "version": "ChagallWSPI-sWRX8 1.0.0.7"
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          "versions": [
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          "vendor": "AMD",
          "versions": [
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          "versions": [
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              "version": "RenoirPI-FP6 1.0.0.D"
            }
          ]
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        {
          "defaultStatus": "affected",
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        {
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          "product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics",
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              "version": "CezannePI-FP6 1.0.0.F"
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          "product": "AMD Ryzen\u2122 6000 Series Processors with Radeon\u2122 Graphics",
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          "versions": [
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              "version": "RembrandtPI-FP7 1.0.0.9b"
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          "product": "AMD Ryzen\u2122 7040 Series Processors with Radeon\u2122 Graphics",
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          "versions": [
            {
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              "version": "PhoenixPI-FP8-FP7 1.0.0.2"
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        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 7045 Series Mobile Processors",
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          "versions": [
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              "status": "unaffected",
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          "product": "AMD EPYC\u2122 Embedded 7003",
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              "version": "EmbMilanPI-SP3 1.0.0.8"
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          "product": "AMD EPYC\u2122 Embedded 9003",
          "vendor": "AMD",
          "versions": [
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          "product": "AMD Ryzen\u2122 Embedded R1000",
          "vendor": "AMD",
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          "vendor": "AMD",
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            }
          ]
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          "vendor": "AMD",
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              "status": "unaffected",
              "version": "EmbeddedPI-FP5 1.2.0.A"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 Embedded V2000",
          "vendor": "AMD",
          "versions": [
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              "version": "EmbeddedPI-FP6 1.0.0.9"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 Embedded V3000",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbeddedPI-FP7r2 1.0.0.8"
            }
          ]
        }
      ],
      "source": "psirt@amd.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution."
    }
  ],
  "id": "CVE-2023-20577",
  "lastModified": "2026-09-04T20:17:20.570",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.4,
        "impactScore": 5.9,
        "source": "psirt@amd.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-20577",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-03T03:56:43.507455Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-02T20:17:34.093",
  "references": [
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      "source": "psirt@amd.com",
      "url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html"
    }
  ],
  "sourceIdentifier": "psirt@amd.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ],
      "source": "psirt@amd.com",
      "type": "Secondary"
    }
  ]
}

GHSA-HP78-WV22-MHMG

Vulnerability from github – Published: 2026-09-02 21:32 – Updated: 2026-09-02 21:32

Details

A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.

Severity

7.4 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-20577"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-02T20:17:34Z",
    "severity": "HIGH"
  },
  "details": "A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.",
  "id": "GHSA-hp78-wv22-mhmg",
  "modified": "2026-09-02T21:32:08Z",
  "published": "2026-09-02T21:32:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20577"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2023-20577

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-2023-20577

Aliases

CVE-2023-20577

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-20577",
    "id": "GSD-2023-20577"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-20577"
      ],
      "id": "GSD-2023-20577",
      "modified": "2023-12-13T01:20:28.386670Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2023-20577",
        "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-2024-0369

Vulnerability from csaf_certbund - Published: 2024-02-13 23:00 - Updated: 2024-07-03 22:00

Summary

AMD Prozessor: Mehrere Schwachstellen

Severity

Mittel

Scope

4 vulnerabilities in this advisory, including CVE-2023-20577.

CVE-2023-20577

Es bestehen mehrere Schwachstellen in AMD-Prozessoren und im Dell-BIOS. Diese Fehler bestehen in der seriellen Peripherieschnittstelle (SPI) aufgrund einer unzureichenden Überprüfung der Datenauthentizität, eines Heap-Pufferüberlaufs und einer unsachgemäßen Zugriffskontrolle. Ein lokaler Angreifer kann diese Schwachstellen ausnutzen, um seine Privilegien zu erweitern, beliebigen Code auszuführen oder einen Denial-of-Service-Zustand zu verursachen.

Known affected: 4 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-2023-20577 (GCVE-0-2023-20577)

FKIE_CVE-2023-20577

GHSA-HP78-WV22-MHMG

GSD-2023-20577

WID-SEC-W-2024-0369

Tags

Sightings

Nomenclature

Related by attack behaviour