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CVE-2025-69259 is a remote denial-of-service vulnerability in Trend Micro Apex Central (on-premise) for Windows, affecting versions below Build 7190. The flaw is in MsgReceiver.exe, which listens on TCP port 20001 and processes structured IPC-style messages. Specifically, the vulnerable code path is associated with handling message ID 0x1b5b in the "new protocol" format within msgHandlerLogReceiver.dll (reported in file version 8.0.0.7052). During parsing, the handler calls strstr(user_data, "\r\n") to locate a CRLF delimiter but does not verify whether strstr() returned NULL. If an attacker sends a crafted 0x1b5b message whose data omits the expected CRLF sequence, the code performs pointer arithmetic on a NULL-derived value, leading to invalid memory access and an access violation. Authentication is not required to reach the vulnerable service.
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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.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.
21 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A medium-severity denial-of-service vulnerability in Trend Micro Apex Central (on-premises).
Medium-severity denial-of-service vulnerability in Trend Micro Apex Central on-premises (details not further specified in the content).
A denial-of-service vulnerability in Trend Micro Apex Central where an unchecked NULL return value can be triggered remotely by an unauthenticated attacker to cause a DoS condition.
A vulnerability in Trend Micro Apex Central for Windows that could allow a remote, unauthenticated attacker to cause a denial-of-service condition via an unchecked NULL return value.
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.