Vulnerability-Lookup

CVE-2021-42553 (GCVE-0-2021-42553)

Vulnerability from cvelistv5 – Published: 2022-10-21 00:00 – Updated: 2025-05-07 20:10

Title

STM32 USB Host Library Buffer Overflow

Summary

A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics in versions before 3.5.1 allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs.

Severity

6.8 (Medium)


                        
                          CVSS:3.1/AV:P/AC:L/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 2025-05-07 20:06 UTC

CWE

buffer overflow
CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Assigner

NCSC.ch CNA under the mitre root

CNA scorecard B 79/100 over 81 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/STMicroelectronics/stm32_mw_us…
https://github.com/STMicroelectronics/stm32_mw_usb_host

Impacted products

1 product

Vendor	Product	Version	CPE status
STMicroelectronics STM32Cube	STM32 USB Host Library	Affected: all , < 3.5.1 (custom)	guessed

Credits

github.com/Defonceuse

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2021-42553

Vulnerability from fkie_nvd - Published: 2022-10-21 10:15 - Updated: 2026-10-08 18:23

Severity

6.8 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

URL	Tags
vulnerability@ncsc.ch	https://github.com/STMicroelectronics/stm32_mw_usb_host	Product
vulnerability@ncsc.ch	https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/STMicroelectronics/stm32_mw_usb_host	Product
af854a3a-2127-422b-91ae-364da2661108	https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4	Patch, Third Party Advisory

Impacted products

	Vendor	Product	Version
	st	stm32_mw_usb_host	*

JSON

To clipboard

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          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-VWMV-9R25-J98P

Vulnerability from github – Published: 2022-10-21 12:00 – Updated: 2022-10-24 19:00

Details

A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs.

Severity

9.8 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-42553"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-10-21T10:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs.",
  "id": "GHSA-vwmv-9r25-j98p",
  "modified": "2022-10-24T19:00:21Z",
  "published": "2022-10-21T12:00:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-42553"
    },
    {
      "type": "WEB",
      "url": "https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/STMicroelectronics/stm32_mw_usb_host"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2021-42553

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

Details

Aliases

CVE-2021-42553

Aliases

CVE-2021-42553

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-42553",
    "id": "GSD-2021-42553"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-42553"
      ],
      "details": "A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics in versions before 3.5.1 allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs.",
      "id": "GSD-2021-42553",
      "modified": "2023-12-13T01:23:06.753835Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "vulnerability@ncsc.ch",
        "ID": "CVE-2021-42553",
        "STATE": "PUBLIC",
        "TITLE": "STM32 USB Host Library Buffer Overflow"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "STM32 USB Host Library",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "all",
                          "version_value": "3.5.1"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "STMicroelectronics STM32Cube "
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "github.com/Defonceuse"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics in versions before 3.5.1 allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "PHYSICAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "buffer overflow"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4",
            "refsource": "CONFIRM",
            "url": "https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4"
          },
          {
            "name": "https://github.com/STMicroelectronics/stm32_mw_usb_host",
            "refsource": "MISC",
            "url": "https://github.com/STMicroelectronics/stm32_mw_usb_host"
          }
        ]
      },
      "source": {
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:st:stm32_mw_usb_host:-:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "vulnerability@ncsc.ch",
          "ID": "CVE-2021-42553"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics in versions before 3.5.1 allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-120"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4"
            },
            {
              "name": "https://github.com/STMicroelectronics/stm32_mw_usb_host",
              "refsource": "MISC",
              "tags": [],
              "url": "https://github.com/STMicroelectronics/stm32_mw_usb_host"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-03-07T13:15Z",
      "publishedDate": "2022-10-21T10:15Z"
    }
  }
}

UBUNTU-CVE-2021-42553 (CVE-2021-42553)

Vulnerability from osv_ubuntu – Published: 2022-10-21 10:15 – Updated: 2026-10-17 09:08 – Source website

Details

Severity

6.8 (Medium)


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

9.8 (Critical)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-42553	REPORT
	https://github.com/STMicroelectronics/stm32_mw_us…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2021-42553	REPORT
	https://ubuntu.com/security/notices/USN-7472-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "micropython",
            "binary_version": "1.12-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "micropython",
        "purl": "pkg:deb/ubuntu/micropython@1.12-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.12-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.12-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "micropython",
            "binary_version": "1.17+ds-1.1ubuntu2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "micropython",
        "purl": "pkg:deb/ubuntu/micropython@1.17+ds-1.1ubuntu2+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.17+ds-1.1ubuntu2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.17+ds-1ubuntu1",
        "1.17+ds-1.1",
        "1.17+ds-1.1ubuntu2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "micropython",
            "binary_version": "1.22.1+ds-1ubuntu0.24.04.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "micropython",
        "purl": "pkg:deb/ubuntu/micropython@1.22.1+ds-1ubuntu0.24.04.1~esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.22.1+ds-1ubuntu0.24.04.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.19.1+ds-1",
        "1.22.1+ds-1",
        "1.22.1+ds-1build1",
        "1.22.1+ds-1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "micropython",
            "binary_version": "1.25.0+ds-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "micropython",
        "purl": "pkg:deb/ubuntu/micropython@1.25.0+ds-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.24.1+ds-1",
        "1.25.0+ds-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "micropython",
            "binary_version": "1.26.1+ds-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "micropython",
        "purl": "pkg:deb/ubuntu/micropython@1.26.1+ds-1?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.26.1+ds-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "micropython",
            "binary_version": "1.26.1+ds-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "micropython",
        "purl": "pkg:deb/ubuntu/micropython@1.26.1+ds-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.25.0+ds-1",
        "1.26.1+ds-1"
      ]
    }
  ],
  "aliases": [],
  "details": "A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics in versions before 3.5.1 allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs.",
  "id": "UBUNTU-CVE-2021-42553",
  "modified": "2026-10-17T09:08:37Z",
  "published": "2022-10-21T10:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-42553"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-42553"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7472-1"
    }
  ],
  "related": [
    "USN-7472-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-42553"
  ]
}

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

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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-2021-42553 (GCVE-0-2021-42553)

FKIE_CVE-2021-42553

GHSA-VWMV-9R25-J98P

GSD-2021-42553

UBUNTU-CVE-2021-42553 (CVE-2021-42553)

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