Vulnerability-Lookup

FKIE_CVE-2026-6923

Vulnerability from fkie_nvd - Published: 2026-05-14 17:16 - Updated: 2026-05-14 18:24

Severity

3.8 (Low) - CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Summary

A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of an Elliptic Curve Diffie-Hellman (ECDH) key.

References

	URL	Tags
	cna@cyber.gov.il	https://www.gov.il/en/departments/dynamiccollectors/cve_advisories_listing?skip=0

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of an Elliptic Curve Diffie-Hellman (ECDH) key."
    }
  ],
  "id": "CVE-2026-6923",
  "lastModified": "2026-05-14T18:24:08.747",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "PHYSICAL",
          "availabilityImpact": "NONE",
          "baseScore": 3.8,
          "baseSeverity": "LOW",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 0.2,
        "impactScore": 3.6,
        "source": "cna@cyber.gov.il",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-05-14T17:16:24.213",
  "references": [
    {
      "source": "cna@cyber.gov.il",
      "url": "https://www.gov.il/en/departments/dynamiccollectors/cve_advisories_listing?skip=0"
    }
  ],
  "sourceIdentifier": "cna@cyber.gov.il",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1300"
        }
      ],
      "source": "cna@cyber.gov.il",
      "type": "Primary"
    }
  ]
}

CVE-2026-6923 (GCVE-0-2026-6923)

Vulnerability from cvelistv5 – Published: 2026-05-14 16:14 – Updated: 2026-05-14 18:33

Title

Nuvoton - CWE-1300: Improper Protection of Physical Side Channels

Summary

A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of an Elliptic Curve Diffie-Hellman (ECDH) key.

Severity

3.8 (Low)


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

CWE

CWE-1300 - Improper protection of physical side channels

Assigner

INCD

References

1 reference

URL	Tags
https://www.gov.il/en/departments/dynamiccollecto…

Impacted products

1 product

Vendor	Product	Version
Nuvoton	NPCT7xx	Affected: all versions below 7.2.4.0 (cpe)

Date Public

2026-05-14 16:01

Credits

Robin Muller, Roman Korkikian - uSec

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-6923",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-14T18:32:58.551244Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-14T18:33:12.447Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "NPCT7xx",
          "vendor": "Nuvoton",
          "versions": [
            {
              "status": "affected",
              "version": "all versions below 7.2.4.0",
              "versionType": "cpe"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Robin Muller, Roman Korkikian - uSec"
        }
      ],
      "datePublic": "2026-05-14T16:01:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of an Elliptic Curve Diffie-Hellman (ECDH) key."
            }
          ],
          "value": "A side-channel attack, which requires a physical presence to the TPM, can lead to extraction of an Elliptic Curve Diffie-Hellman (ECDH) key."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "NONE",
            "baseScore": 3.8,
            "baseSeverity": "LOW",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "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": "2026-05-14T16:14:33.541Z",
        "orgId": "a57ee1ae-c9c1-4f40-aa7b-cf10760fde3f",
        "shortName": "INCD"
      },
      "references": [
        {
          "url": "https://www.gov.il/en/departments/dynamiccollectors/cve_advisories_listing?skip=0"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Upgrade to version 7.2.4.0 or above."
            }
          ],
          "value": "Upgrade to version 7.2.4.0 or above."
        }
      ],
      "source": {
        "advisory": "ILVN-2026-0259",
        "discovery": "UNKNOWN"
      },
      "title": "Nuvoton - CWE-1300: Improper Protection of Physical Side Channels",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a57ee1ae-c9c1-4f40-aa7b-cf10760fde3f",
    "assignerShortName": "INCD",
    "cveId": "CVE-2026-6923",
    "datePublished": "2026-05-14T16:14:33.541Z",
    "dateReserved": "2026-04-23T16:23:24.316Z",
    "dateUpdated": "2026-05-14T18:33:12.447Z",
    "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.

Action not permitted

FKIE_CVE-2026-6923

CVE-2026-6923 (GCVE-0-2026-6923)

Tags

Sightings

Nomenclature