CVE-2026-34926 · netVigilance record NV26-0117
Trend Micro Apex One (On-Premise) Directory Traversal
past due
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2026-06-04 · passed 3 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
Trend Micro Apex One. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-23.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 3 months ago
Sources
- NVD entry for CVE-2026-34926 nvd.nist.gov/vuln/detail/CVE-2026-34926
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- success.trendmicro.com success.trendmicro.com/en-US/solution/KA-0023430
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2026-34926