Vulnerability-Lookup

JVNDB-2026-016802

Vulnerability from jvndb - Published: 2026-05-22 07:44 - Updated:2026-05-25 06:38

Severity

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

Summary

Multiple vulnerabilities in Trend Micro Endpoint security products for enterprises (May 2026)

Details

Multiple vulnerabilities in Trend Micro Endpoint security products for enterprises contain multiple vulnerabilities listed below.

Relative path traversal in Apex One server (CWE-23) - CVE-2026-34926
- The only product that could be vulnerable to this exploit is TrendAI Apex One (On Premise).
Origin validation error in Security Agent (CWE-346) - CVE-2026-34927,CVE-2026-34928,CVE-2026-34929,CVE-2026-34930,CVE-2026-45206,CVE-2026-45207
Time-of-check time-of-use (TOCTOU) race condition in Security Agent (CWE-367) - CVE-2026-45208

Trend Micro Incorporated has reported that attacks exploiting CVE-2026-34926 have been observed in the wild. Trend Micro Incorporated reported these vulnerabilities to JPCERT/CC to notify users of the solutions through JVN.

References

Type

URL

	JVN	https://jvn.jp/en/vu/JVNVU90583059/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-34926
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-34927
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-34928
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-34929
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-34930
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-45206
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-45207
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-45208
	JPCERT AT	https://www.jpcert.or.jp/english/at/2026/at260014.html
	Relative Path Traversal(CWE-23)	https://cwe.mitre.org/data/definitions/23.html
	Origin Validation Error(CWE-346)	https://cwe.mitre.org/data/definitions/346.html
	Time-of-check Time-of-use (TOCTOU) Race Condition(CWE-367)	https://cwe.mitre.org/data/definitions/367.html

Impacted products

Vendor

Product

	Trend Micro, Inc.	TrendAI Apex One
	Trend Micro, Inc.	TrendAI Vision One Endpoint Security - Standard Endpoint Protection
	Trend Micro, Inc.	Trend Micro Apex One

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-016802.html",
  "dc:date": "2026-05-25T15:38+09:00",
  "dcterms:issued": "2026-05-22T16:44+09:00",
  "dcterms:modified": "2026-05-25T15:38+09:00",
  "description": "Multiple vulnerabilities in Trend Micro Endpoint security products for enterprises contain multiple vulnerabilities listed below.\u003cul\u003e\u003cli\u003eRelative path traversal in Apex One server (CWE-23) - CVE-2026-34926\u003cul\u003e\u003cli\u003eThe only product that could be vulnerable to this exploit is TrendAI Apex One (On Premise).\u003c/li\u003e\u003c/ul\u003e\u003c/li\u003e\u003cli\u003eOrigin validation error in Security Agent (CWE-346) - CVE-2026-34927,CVE-2026-34928,CVE-2026-34929,CVE-2026-34930,CVE-2026-45206,CVE-2026-45207\u003c/li\u003e\u003cli\u003eTime-of-check time-of-use (TOCTOU) race condition in Security Agent (CWE-367) - CVE-2026-45208\u003c/li\u003e\u003c/ul\u003eTrend Micro Incorporated has reported that attacks exploiting CVE-2026-34926 have been observed in the wild.\r\n\r\nTrend Micro Incorporated reported these vulnerabilities to JPCERT/CC to notify users of the solutions through JVN.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-016802.html",
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    {
      "#text": "cpe:/a:trendmicro:trendai_apex_one",
      "@product": "TrendAI Apex One",
      "@vendor": "Trend Micro, Inc.",
      "@version": "2.2"
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      "@product": "TrendAI Vision One Endpoint Security - Standard Endpoint Protection",
      "@vendor": "Trend Micro, Inc.",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/a:trendmicro:trend_micro_apex_one",
      "@product": "Trend Micro Apex One",
      "@vendor": "Trend Micro, Inc.",
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    }
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    "@score": "6.7",
    "@severity": "Medium",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L",
    "@version": "3.0"
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  "sec:identifier": "JVNDB-2026-016802",
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      "#text": "https://jvn.jp/en/vu/JVNVU90583059/index.html",
      "@id": "JVNVU#90583059",
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      "@id": "CVE-2026-34928",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-34929",
      "@id": "CVE-2026-34929",
      "@source": "CVE"
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    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-34930",
      "@id": "CVE-2026-34930",
      "@source": "CVE"
    },
    {
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      "@id": "CVE-2026-45206",
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    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-45207",
      "@id": "CVE-2026-45207",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-45208",
      "@id": "CVE-2026-45208",
      "@source": "CVE"
    },
    {
      "#text": "https://www.jpcert.or.jp/english/at/2026/at260014.html",
      "@id": "JPCERT-AT-2026-0014",
      "@source": "JPCERT AT"
    },
    {
      "#text": "https://cwe.mitre.org/data/definitions/23.html",
      "@id": "CWE-23",
      "@title": "Relative Path Traversal(CWE-23)"
    },
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      "#text": "https://cwe.mitre.org/data/definitions/346.html",
      "@id": "CWE-346",
      "@title": "Origin Validation Error(CWE-346)"
    },
    {
      "#text": "https://cwe.mitre.org/data/definitions/367.html",
      "@id": "CWE-367",
      "@title": "Time-of-check Time-of-use (TOCTOU) Race Condition(CWE-367)"
    }
  ],
  "title": "Multiple vulnerabilities in Trend Micro Endpoint security products for enterprises (May 2026)"
}

CVE-2026-34926 (GCVE-0-2026-34926)

Vulnerability from cvelistv5 – Published: 2026-05-21 13:03 – Updated: 2026-05-22 12:47

Summary

A directory traversal vulnerability in the Apex One (on-premise) server could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations. This vulnerability is only exploitable on the on-premise version of Apex One and a potential attacker must have access to the Apex One Server and already obtained administrative credentials to the server via some other method to exploit this vulnerability.

Severity

6.7 (Medium)


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

SSVC

Exploitation: active Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-22 03:55 UTC

CWE

CWE-23 - Relative Path Traversal

Assigner

trendmicro mitre root

References

5 references

URL	Tags
https://success.trendmicro.com/en-US/solution/KA-…
https://success.trendmicro.com/ja-JP/solution/KA-…
https://jvn.jp/en/vu/JVNVU90583059/
https://www.jpcert.or.jp/english/at/2026/at260014.html
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

2 products

Vendor	Product	Version
Trend Micro, Inc.	TrendAI Apex One	Affected: 2019 (14.0) , < 14.0.0.17079 (semver) cpe:2.3:a:trendmicro:apexone_op:14.0.0.17079:::::::*
Trend Micro, Inc.	TrendAI Apex One as a Service	Affected: SaaS , < 14.0.20731 (semver) cpe:2.3:a:trendmicro:apexone_saas:14.0.0.20731:::::::*

Show details on NVD website

JSON

To clipboard

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          "cvssV3_1": {
            "attackComplexity": "HIGH",
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            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
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            "scope": "UNCHANGED",
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CVE-2026-34927 (GCVE-0-2026-34927)

Vulnerability from cvelistv5 – Published: 2026-05-21 13:03 – Updated: 2026-05-22 03:55

Summary

An origin validation vulnerability in the Apex One/SEP agent could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-21 00:00 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

trendmicro mitre root

References

1 reference

URL	Tags
https://success.trendmicro.com/en-US/solution/KA-…

Impacted products

2 products

Vendor	Product	Version
Trend Micro, Inc.	TrendAI Apex One	Affected: 2019 (14.0) , < 14.0.0.17079 (semver) cpe:2.3:a:trendmicro:apexone_op:14.0.0.17079:::::::*
Trend Micro, Inc.	TrendAI Apex One as a Service	Affected: SaaS , < 14.0.20731 (semver) cpe:2.3:a:trendmicro:apexone_saas:14.0.0.20731:::::::*

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-34927",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-21T00:00:00+00:00",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        "title": "CISA ADP Vulnrichment"
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CVE-2026-34928 (GCVE-0-2026-34928)

Vulnerability from cvelistv5 – Published: 2026-05-21 13:03 – Updated: 2026-05-22 03:55

Summary

An origin validation vulnerability in the Apex One/SEP agent could allow a local attacker to escalate privileges on affected installations. This is similar to CVE-2026-34927 but exists in a different named pipe communication mechanism. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-21 00:00 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

trendmicro mitre root

References

1 reference

URL	Tags
https://success.trendmicro.com/en-US/solution/KA-…

Impacted products

2 products

Vendor	Product	Version
Trend Micro, Inc.	TrendAI Apex One	Affected: 2019 (14.0) , < 14.0.0.17079 (semver) cpe:2.3:a:trendmicro:apexone_op:14.0.0.17079:::::::*
Trend Micro, Inc.	TrendAI Apex One as a Service	Affected: SaaS , < 14.0.20731 (semver) cpe:2.3:a:trendmicro:apexone_saas:14.0.0.20731:::::::*

Show details on NVD website

JSON

To clipboard

{
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    "adp": [
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        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-34928",
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        "title": "CISA ADP Vulnrichment"
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    ],
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          "product": "TrendAI Apex One",
          "vendor": "Trend Micro, Inc.",
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        }
      ],
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CVE-2026-34929 (GCVE-0-2026-34929)

Vulnerability from cvelistv5 – Published: 2026-05-21 13:03 – Updated: 2026-05-22 03:55

Summary

An origin validation vulnerability in the Apex One/SEP agent could allow a local attacker to escalate privileges on affected installations. This is similar to CVE-2026-34927 but exists in a different inter-process communication mechanism. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-21 00:00 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

trendmicro mitre root

References

1 reference

URL	Tags
https://success.trendmicro.com/en-US/solution/KA-…

Impacted products

2 products

Vendor	Product	Version
Trend Micro, Inc.	TrendAI Apex One	Affected: 2019 (14.0) , < 14.0.0.17079 (semver) cpe:2.3:a:trendmicro:apexone_op:14.0.0.17079:::::::*
Trend Micro, Inc.	TrendAI Apex One as a Service	Affected: SaaS , < 14.0.20731 (semver) cpe:2.3:a:trendmicro:apexone_saas:14.0.0.20731:::::::*

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-34929",
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CVE-2026-34930 (GCVE-0-2026-34930)

Vulnerability from cvelistv5 – Published: 2026-05-21 13:04 – Updated: 2026-05-22 03:55

Summary

An origin validation vulnerability in the Apex One/SEP agent could allow a local attacker to escalate privileges on affected installations. This is similar to CVE-2026-34927 but exists in a different process protection mechanism. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-21 00:00 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

trendmicro mitre root

References

1 reference

URL	Tags
https://success.trendmicro.com/en-US/solution/KA-…

Impacted products

2 products

Vendor	Product	Version
Trend Micro, Inc.	TrendAI Apex One	Affected: 2019 (14.0) , < 14.0.0.17079 (semver) cpe:2.3:a:trendmicro:apexone_op:14.0.0.17079:::::::*
Trend Micro, Inc.	TrendAI Apex One as a Service	Affected: SaaS , < 14.0.20731 (semver) cpe:2.3:a:trendmicro:apexone_saas:14.0.0.20731:::::::*

Show details on NVD website

JSON

To clipboard

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CVE-2026-45206 (GCVE-0-2026-45206)

Vulnerability from cvelistv5 – Published: 2026-05-21 13:04 – Updated: 2026-05-22 03:55

Summary

An origin validation vulnerability in the Apex One/SEP agent could allow a local attacker to escalate privileges on affected installations. This is similar to CVE-2026-45207 but exists in a different process protection communication mechanism. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-21 00:00 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

trendmicro mitre root

References

1 reference

URL	Tags
https://success.trendmicro.com/en-US/solution/KA-…

Impacted products

2 products

Vendor	Product	Version
Trend Micro, Inc.	TrendAI Apex One	Affected: 2019 (14.0) , < 14.0.0.17079 (semver) cpe:2.3:a:trendmicro:apexone_op:14.0.0.17079:::::::*
Trend Micro, Inc.	TrendAI Apex One as a Service	Affected: SaaS , < 14.0.20731 (semver) cpe:2.3:a:trendmicro:apexone_saas:14.0.0.20731:::::::*

Show details on NVD website

JSON

To clipboard

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        "metrics": [
          {
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                "id": "CVE-2026-45206",
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CVE-2026-45207 (GCVE-0-2026-45207)

Vulnerability from cvelistv5 – Published: 2026-05-21 13:04 – Updated: 2026-05-22 03:55

Summary

An origin validation vulnerability in the Apex One/SEP agent could allow a local attacker to escalate privileges on affected installations. This is similar to CVE-2026-45206 but exists in a different process protection communication mechanism. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-21 00:00 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

trendmicro mitre root

References

1 reference

URL	Tags
https://success.trendmicro.com/en-US/solution/KA-…

Impacted products

2 products

Vendor	Product	Version
Trend Micro, Inc.	TrendAI Apex One	Affected: 2019 (14.0) , < 14.0.0.17079 (semver) cpe:2.3:a:trendmicro:apexone_op:14.0.0.17079:::::::*
Trend Micro, Inc.	TrendAI Apex One as a Service	Affected: SaaS , < 14.0.20731 (semver) cpe:2.3:a:trendmicro:apexone_saas:14.0.0.20731:::::::*

Show details on NVD website

JSON

To clipboard

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    "assignerShortName": "trendmicro",
    "cveId": "CVE-2026-45207",
    "datePublished": "2026-05-21T13:04:25.843Z",
    "dateReserved": "2026-05-11T13:42:24.970Z",
    "dateUpdated": "2026-05-22T03:55:28.422Z",
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CVE-2026-45208 (GCVE-0-2026-45208)

Vulnerability from cvelistv5 – Published: 2026-05-21 13:04 – Updated: 2026-05-22 03:55

Summary

A time-of-check time-of-use vulnerability in the Apex One/SEP agent could allow a local attacker to escalate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-21 00:00 UTC

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

trendmicro mitre root

References

1 reference

URL	Tags
https://success.trendmicro.com/en-US/solution/KA-…

Impacted products

2 products

Vendor	Product	Version
Trend Micro, Inc.	TrendAI Apex One	Affected: 2019 (14.0) , < 14.0.0.17079 (semver) cpe:2.3:a:trendmicro:apexone_op:14.0.0.17079:::::::*
Trend Micro, Inc.	TrendAI Apex One as a Service	Affected: SaaS , < 14.0.20731 (semver) cpe:2.3:a:trendmicro:apexone_saas:14.0.0.20731:::::::*

Show details on NVD website

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To clipboard

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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.

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