jvndb - jvndb-2025-000117

JVNDB-2025-000117

Vulnerability from jvndb - Published: 2025-12-16 15:31 - Updated:2025-12-23 11:57

Severity ?

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

Summary

SEIKO EPSON printer Web Config vulnerable to stack-based buffer overflow

Details

Web Config is software installed on multiple SEIKO EPSON printers which allows users to check the status and change the settings via a web browser. Web Config contains the following vulnerability.

Stack-based buffer overflow (CWE-121) - CVE-2025-66635

Shogo Iyota of GMO Cybersecurity by Ierae, Inc. reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN51846148/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-66635
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

SEIKO EPSON CORPORATION

Web Config

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2025/JVNDB-2025-000117.html",
  "dc:date": "2025-12-23T11:57+09:00",
  "dcterms:issued": "2025-12-16T15:31+09:00",
  "dcterms:modified": "2025-12-23T11:57+09:00",
  "description": "Web Config is software installed on multiple SEIKO EPSON printers which allows users to check the status and change the settings via a web browser.\r\nWeb Config contains the following vulnerability.\u003cul\u003e\u003cli\u003eStack-based buffer overflow (CWE-121) - CVE-2025-66635\u003c/li\u003e\u003c/ul\u003eShogo Iyota of GMO Cybersecurity by Ierae, Inc. reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2025/JVNDB-2025-000117.html",
  "sec:cpe": {
    "#text": "cpe:/a:epson:web_config",
    "@product": "Web Config",
    "@vendor": "SEIKO EPSON CORPORATION",
    "@version": "2.2"
  },
  "sec:cvss": {
    "@score": "7.2",
    "@severity": "High",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2025-000117",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN51846148/index.html",
      "@id": "JVN#51846148",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-66635",
      "@id": "CVE-2025-66635",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "SEIKO EPSON printer Web Config vulnerable to stack-based buffer overflow"
}

CVE-2025-66635 (GCVE-0-2025-66635)

Vulnerability from cvelistv5 – Published: 2025-12-16 06:59 – Updated: 2025-12-22 02:27

Summary

Stack-based buffer overflow vulnerability exists in SEIKO EPSON Web Config. Specially crafted data input by a logged-in user may execute arbitrary code. As for the details of the affected products and versions, see the information provided by the vendor under [References].

Severity ?

7.2 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

8.6 (High)


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

CWE

CWE-121 - Stack-based buffer overflow

Assigner

jpcert

References

URL

Tags

	https://www.epson.jp/support/misc_t/251216_oshirase.htm
	https://epson.com/Support/wa00971
	https://jvn.jp/en/jp/JVN51846148/

Impacted products

	Vendor	Product	Version
	SEIKO EPSON CORPORATION	Web Config	Affected: See the information/details provided by the vendor

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "metrics": [
          {
            "other": {
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                "id": "CVE-2025-66635",
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                "role": "CISA Coordinator",
                "timestamp": "2025-12-16T21:32:37.175744Z",
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            "baseSeverity": "HIGH",
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Sightings

Author	Source	Type	Date

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

JVNDB-2025-000117

CVE-2025-66635 (GCVE-0-2025-66635)

Tags

Sightings

Nomenclature