Vulnerability-Lookup

FKIE_CVE-2026-89172

Vulnerability from fkie_nvd - Published: 2026-09-12 10:16 - Updated: 2026-09-12 10:16

Severity

5.6 (Medium) - CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Summary

Improper protection of physical side channels vulnerability in Microchip AN1044, Microchip AN953, and Microchip SW300052. This issue affects AN1044: through A; AN953: through A; SW300052: through 2.6.

References

	URL	Tags
	dc3f6da9-85b5-4a73-84a2-2ec90b40fca5	https://www.microchip.com/en-us/application-notes/an1044
	dc3f6da9-85b5-4a73-84a2-2ec90b40fca5	https://www.microchip.com/en-us/application-notes/an953
	dc3f6da9-85b5-4a73-84a2-2ec90b40fca5	https://www.microchip.com/en-us/development-tool/sw300052
	dc3f6da9-85b5-4a73-84a2-2ec90b40fca5	https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/side-channel-attack-an1044-an953-sw300052-cryptographic-algorithms

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "AN1044",
          "vendor": "Microchip",
          "versions": [
            {
              "lessThanOrEqual": "A",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "AN953",
          "vendor": "Microchip",
          "versions": [
            {
              "lessThanOrEqual": "A",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SW300052",
          "vendor": "Microchip",
          "versions": [
            {
              "lessThanOrEqual": "2.6",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper protection of physical side channels vulnerability in Microchip AN1044, Microchip AN953, and Microchip SW300052.\n\nThis issue affects AN1044: through A; AN953: through A; SW300052: through 2.6."
    }
  ],
  "id": "CVE-2026-89172",
  "lastModified": "2026-09-12T10:16:36.317",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "HIGH",
          "attackRequirements": "PRESENT",
          "attackVector": "PHYSICAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.6,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-12T10:16:36.317",
  "references": [
    {
      "source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
      "url": "https://www.microchip.com/en-us/application-notes/an1044"
    },
    {
      "source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
      "url": "https://www.microchip.com/en-us/application-notes/an953"
    },
    {
      "source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
      "url": "https://www.microchip.com/en-us/development-tool/sw300052"
    },
    {
      "source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
      "url": "https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/side-channel-attack-an1044-an953-sw300052-cryptographic-algorithms"
    }
  ],
  "sourceIdentifier": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1300"
        }
      ],
      "source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
      "type": "Secondary"
    }
  ]
}

CVE-2026-89172 (GCVE-0-2026-89172)

Vulnerability from cvelistv5 – Published: 2026-09-12 09:26 – Updated: 2026-09-12 09:26

Title

Side-channel attack of AN1044/AN953/SW300052 cryptographic algorithms

Summary

Severity

5.6 (Medium)


                        
                          CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

CWE

CWE-1300 - Improper protection of physical side channels

Assigner

Microchip mitre root

References

4 references

URL	Tags
https://www.microchip.com/en-us/solutions/technol…	vendor-advisory
https://www.microchip.com/en-us/application-notes…	related
https://www.microchip.com/en-us/application-notes/an953	related
https://www.microchip.com/en-us/development-tool/…	related

Impacted products

3 products

Vendor	Product	Version
Microchip	AN1044	Affected: 0 , ≤ A (custom)
Microchip	AN953	Affected: 0 , ≤ A (custom)
Microchip	SW300052	Affected: 0 , ≤ 2.6 (custom)

Credits

Daniel Würsch Institute of Computer Science, University of Tartu

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "AN1044",
          "vendor": "Microchip",
          "versions": [
            {
              "lessThanOrEqual": "A",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "AN953",
          "vendor": "Microchip",
          "versions": [
            {
              "lessThanOrEqual": "A",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SW300052",
          "vendor": "Microchip",
          "versions": [
            {
              "lessThanOrEqual": "2.6",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Daniel W\u00fcrsch"
        },
        {
          "lang": "en",
          "type": "other",
          "value": "Institute of Computer Science, University of Tartu"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Improper protection of physical side channels vulnerability in Microchip AN1044, Microchip AN953, and Microchip SW300052.\u003cp\u003eThis issue affects AN1044: through A; AN953: through A; SW300052: through 2.6.\u003c/p\u003e"
            }
          ],
          "value": "Improper protection of physical side channels vulnerability in Microchip AN1044, Microchip AN953, and Microchip SW300052.\n\nThis issue affects AN1044: through A; AN953: through A; SW300052: through 2.6."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-97",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-97"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "PHYSICAL",
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1300",
              "description": "CWE-1300 Improper protection of physical side channels",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-12T09:26:05.932Z",
        "orgId": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
        "shortName": "Microchip"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/side-channel-attack-an1044-an953-sw300052-cryptographic-algorithms"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://www.microchip.com/en-us/application-notes/an1044"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://www.microchip.com/en-us/application-notes/an953"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://www.microchip.com/en-us/development-tool/sw300052"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eNone. Side-channel prevention is outside of intended use of\nproduct.\u003c/p\u003e"
            }
          ],
          "value": "None. Side-channel prevention is outside of intended use of\nproduct."
        }
      ],
      "source": {
        "advisory": "PSIRT-128",
        "discovery": "EXTERNAL"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-04-01T22:00:00.000Z",
          "value": "Reported"
        }
      ],
      "title": "Side-channel attack of AN1044/AN953/SW300052 cryptographic algorithms",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
    "assignerShortName": "Microchip",
    "cveId": "CVE-2026-89172",
    "datePublished": "2026-09-12T09:26:05.932Z",
    "dateReserved": "2026-09-11T05:25:06.717Z",
    "dateUpdated": "2026-09-12T09:26:05.932Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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FKIE_CVE-2026-89172

CVE-2026-89172 (GCVE-0-2026-89172)

Tags

Sightings

Nomenclature