Is It On KEV?

Trend Micro Apex One

YES - ON THE CISA KEV LIST
CVE-2026-34926

Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability

CISA catalog due date2026-06-04
160 days past due
EPSS exploit probability (next 30 days)13.4% · 96percentile
From CVE publication to KEV listing0 days (2026-05-21 → 2026-05-21)
Remediation window (KEV listing to due date)14 days
Days on the KEV list174 days
Date added to KEV2026-05-21
Known ransomware campaign useUnknown
VendorTrend Micro
ProductApex One
Weaknesses (CWE)CWE-23

Trend Micro: 12 entries (0.7% of all KEV entries are from this vendor); 1 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your remediation window ends:

Description

Trend Micro Apex One (on-premise) contains a directory traversal vulnerability that 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.

Required action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

https://success.trendmicro.com/en-US/solution/KA-0023430 ; https://nvd.nist.gov/vuln/detail/CVE-2026-34926

References

Other KEV entries for this vendor: Trend Micro

Trend Micro - Vendors with KEV entries

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