Vulnerability-Lookup

JVNDB-2026-010851

Vulnerability from jvndb - Published: 2026-04-14 09:13 - Updated:2026-04-14 09:13

Severity

6.7 (Medium) - cvssV3_0 - CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Summary

Stack-based buffer overflow vulnerability in Dynabook Bluetooth ACPI Drivers

Details

Bluetooth ACPI Drivers provided by Dynabook Inc. contain the following vulnerability.

Stack-based buffer overflow (CWE-121) - CVE-2026-35553

Andrea Monzani, Antonio Parata, and Davide Netti of University of Milan reported this vulnerability to JPCERT/CC. JPCERT/CC coordinated with the developer.

References

Type

URL

	JVN	https://jvn.jp/en/vu/JVNVU96334293/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-35553
	Stack-based Buffer Overflow(CWE-121)	https://cwe.mitre.org/data/definitions/121.html

Impacted products

Vendor

Product

	Dynabook Inc.	DRFEC.SYS
	Dynabook Inc.	TOSRFEC.SYS

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-010851.html",
  "dc:date": "2026-04-14T18:13+09:00",
  "dcterms:issued": "2026-04-14T18:13+09:00",
  "dcterms:modified": "2026-04-14T18:13+09:00",
  "description": "Bluetooth ACPI Drivers provided by Dynabook Inc. contain the following vulnerability.\u003ca href=\u0027https://cwe.mitre.org/data/definitions/121.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003cul\u003e\u003cli\u003eStack-based buffer overflow (CWE-121) - CVE-2026-35553\u003c/li\u003e\u003c/ul\u003eAndrea Monzani, Antonio Parata, and Davide Netti of University of Milan reported this vulnerability to JPCERT/CC.\r\nJPCERT/CC coordinated with the developer.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-010851.html",
  "sec:cpe": [
    {
      "#text": "cpe:/o:misc:dynabook_drfec_sys",
      "@product": "DRFEC.SYS",
      "@vendor": "Dynabook Inc.",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:misc:dynabook_tosrfec_sys",
      "@product": "TOSRFEC.SYS",
      "@vendor": "Dynabook Inc.",
      "@version": "2.2"
    }
  ],
  "sec:cvss": {
    "@score": "6.7",
    "@severity": "Medium",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-010851",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/vu/JVNVU96334293/index.html",
      "@id": "JVNVU#96334293",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-35553",
      "@id": "CVE-2026-35553",
      "@source": "CVE"
    },
    {
      "#text": "https://cwe.mitre.org/data/definitions/121.html",
      "@id": "CWE-121",
      "@title": "Stack-based Buffer Overflow(CWE-121)"
    }
  ],
  "title": "Stack-based buffer overflow vulnerability in Dynabook Bluetooth ACPI Drivers"
}

CVE-2026-35553 (GCVE-0-2026-35553)

Vulnerability from cvelistv5 – Published: 2026-04-13 04:03 – Updated: 2026-04-13 15:00

Summary

Bluetooth ACPI Drivers provided by Dynabook Inc. contain a stack-based buffer overflow vulnerability. An attacker may execute arbitrary code by modifying certain registry values.

Severity

6.7 (Medium)


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

8.4 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-13 15:00 UTC

CWE

CWE-121 - Stack-based buffer overflow

Assigner

jpcert jpcert root

References

3 references

URL	Tags
https://global.sharp/corporate/info/product-secur…
https://corporate.jp.sharp/info/product-security/…
https://jvn.jp/en/vu/JVNVU96334293/

Impacted products

2 products

Vendor	Product	Version
Dynabook Inc.	TOSRFEC.SYS	Affected: all versions
Dynabook Inc.	DRFEC.SYS	Affected: v11.0.0.0 and earlier

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-35553",
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                "timestamp": "2026-04-13T15:00:14.215479Z",
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            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
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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

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