Vulnerability-Lookup

JVNDB-2026-000013

Vulnerability from jvndb - Published: 2026-02-02 15:18 - Updated:2026-02-02 15:18

Summary

Multiple Microsoft Office products vulnerable to untrusted search path

Details

Multiple Microsoft Office products contain the following vulnerability.

Untrusted search path (CWE-426, - CVE-2026-20943

Kazuma Matsumoto 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/JVN04984838/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-20943
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

	Microsoft Corporation	Microsoft Office
	Microsoft Corporation	Office Deployment Tool
	Microsoft Corporation	Microsoft SharePoint Enterprise Server
	Microsoft Corporation	Microsoft SharePoint Server

Show details on JVN DB website

JSON

To clipboard

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  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000013.html",
  "dc:date": "2026-02-02T15:18+09:00",
  "dcterms:issued": "2026-02-02T15:18+09:00",
  "dcterms:modified": "2026-02-02T15:18+09:00",
  "description": "Multiple Microsoft Office products contain the following vulnerability.\u003cul\u003e\u003cli\u003eUntrusted search path (CWE-426, - CVE-2026-20943\u003c/li\u003e\u003c/ul\u003eKazuma Matsumoto 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/2026/JVNDB-2026-000013.html",
  "sec:cpe": [
    {
      "#text": "cpe:/a:microsoft:office",
      "@product": "Microsoft Office",
      "@vendor": "Microsoft Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/a:microsoft:office_deployment_tool",
      "@product": "Office Deployment Tool",
      "@vendor": "Microsoft Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/a:microsoft:sharepoint_enterprise_server",
      "@product": "Microsoft SharePoint Enterprise Server",
      "@vendor": "Microsoft Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/a:microsoft:sharepoint_server",
      "@product": "Microsoft SharePoint Server",
      "@vendor": "Microsoft Corporation",
      "@version": "2.2"
    }
  ],
  "sec:identifier": "JVNDB-2026-000013",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN04984838/index.html",
      "@id": "JVN#04984838",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-20943",
      "@id": "CVE-2026-20943",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "Multiple Microsoft Office products vulnerable to untrusted search path"
}

CVE-2026-20943 (GCVE-0-2026-20943)

Vulnerability from cvelistv5 – Published: 2026-01-13 17:56 – Updated: 2026-01-30 03:39

Title

Microsoft Office Click-To-Run Remote Code Execution Vulnerability

Summary

Untrusted search path in Microsoft Office allows an unauthorized attacker to execute code locally.

Severity ?

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CWE

CWE-426 - Untrusted Search Path

Assigner

microsoft

References

URL

Tags

https://msrc.microsoft.com/update-guide/vulnerabi…

vendor-advisorypatch

Impacted products

Vendor

Product

Version

Microsoft

Microsoft SharePoint Server 2019

Affected: 16.0.0 , < 16.0.10417.20083 (custom)

Microsoft	Microsoft Office 2016	Affected: 16.0.0 , < 16.0.5535.1000 (custom)
Microsoft	Microsoft SharePoint Enterprise Server 2016	Affected: 16.0.0 , < 16.0.5535.1001 (custom)
Microsoft	Microsoft SharePoint Server Subscription Edition	Affected: 16.0.0 , < 16.0.19127.20442 (custom)
Microsoft	Microsoft Office Deployment Tool	Affected: 1.0 , < 16.0.19426.20170 (custom)

Show details on NVD website

JSON

To clipboard

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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-2026-000013

CVE-2026-20943 (GCVE-0-2026-20943)

Tags

Sightings

Nomenclature