Loading vulnerability…
CVE-2026-34926 is a directory traversal vulnerability affecting the on-premise Apex One server from Trend Micro. The flaw allows a pre-authenticated local attacker to use relative path traversal to escape intended filesystem restrictions on the server and modify a key internal table. By tampering with that server-side table, an attacker can inject malicious code that is subsequently deployed to Apex One agents on affected installations. The issue is limited to on-premise deployments and does not affect the SaaS-hosted server side. Public reporting indicates the vulnerability has been observed under active exploitation in the wild.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
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.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
65 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.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.