Directory Traversal in Trend Micro Apex One (On-Premise)
CVE-2026-34926 is a directory traversal vulnerability affecting the on-premise Apex One server from Trend Micro. According to the provided content, a pre-authenticated local attacker can exploit relative path traversal behavior to bypass intended filesystem restrictions, modify a key table on the Apex One server, and inject malicious code that is then deployed to Apex One agents on affected installations. The issue is limited to on-premise deployments; Trend Micro stated that exploitation requires the attacker to already have access to the Apex One Server and to have obtained administrative credentials to the server through another method. The content also states that Trend Micro observed at least one attempted in-the-wild exploitation and that CISA added the vulnerability to the KEV catalog.
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Impact, mitigation & remediation
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Impact
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Mitigation
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Remediation
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Exploits
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Affected products & vendors
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Recent activity
64 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A relative directory path traversal vulnerability in Trend Micro Apex One that affects on-premise deployments and can allow an attacker with administrative access to the Apex One Server to modify a key table and inject malicious code for deployment to agents.
A directory traversal flaw in Trend Micro Apex One (on-premise) that allows a local attacker with administrative credentials to modify server tables and inject malicious code.
A critical directory traversal vulnerability in on-premise Trend Micro Apex One that can allow a pre-authenticated local attacker to manipulate file paths, access restricted directories, modify a key database table, and inject malicious code that can be distributed to connected endpoint agents.
A directory traversal vulnerability affecting on-premise Trend Micro Apex One that allows a pre-authenticated local attacker with access to the Apex One Server and administrative credentials to modify a key table and inject malicious code for deployment to agents.
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Cross-references every affected SKU, including bundled OEM variants.
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