CVE-2026-34926

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Summary

CVECVE-2026-34926
StatePUBLISHED
Assignertrendmicro
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-21 14:16:45 UTC
Updated2026-05-21 20:16:14 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 6.7 MEDIUM from [email protected]

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

EPSS: 0.010180000 probability, percentile 0.774870000 (date 2026-06-01)

CISA KEV: Listed on 2026-05-21; due 2026-06-04; ransomware use Unknown

Problem Types: CWE-23 | CWE-23 CWE-23: Relative Path Traversal

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
3.1CNACVSS6.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
Low

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

CISA Known Exploited Vulnerability

VendorTrend Micro
ProductApex One
NameTrend Micro Apex One (On-Premise) Directory Traversal Vulnerability
Required ActionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Noteshttps://success.trendmicro.com/en-US/solution/KA-0023430 ; https://nvd.nist.gov/vuln/detail/CVE-2026-34926

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Trend Micro Inc. TrendAI Apex One affected 2019 (14.0) 14.0.0.17079 semver Not specified
CNA Trend Micro Inc. TrendAI Apex One As A Service affected SaaS 14.0.20731 semver Not specified

References

ReferenceSourceLinkTags
jvn.jp/en/vu/JVNVU90583059 [email protected] jvn.jp
success.trendmicro.com/en-US/solution/KA-0023430 [email protected] success.trendmicro.com
www.cisa.gov/known-exploited-vulnerabilities-catalog 134c704f-9b21-4f2e-91b3-4a467353bcc0 www.cisa.gov
success.trendmicro.com/ja-JP/solution/KA-0022974 [email protected] success.trendmicro.com
www.jpcert.or.jp/english/at/2026/at260014.html [email protected] www.jpcert.or.jp
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Additional Advisory Data

SourceTimeEvent
ADP2026-05-21T00:00:00.000ZCVE-2026-34926 added to CISA KEV
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