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CVE-2026-22885 is an information disclosure vulnerability affecting EnOcean SmartServer IoT version 4.60.009 and earlier. The flaw is in parsing LON/IP-852 management messages, specifically insufficient boundary checking of a user-controlled extended-header size field during IP-852 packet processing. Reported analysis attributes the issue to extended-header parsing in the IP-852 packet parser, where a malformed extndHdrSize value can cause the parser to advance beyond the intended buffer boundaries and read past a stack-based buffer. By sending specially crafted IP-852 messages, including time-synchronization-related packets, a remote attacker can cause the device to return unintended process memory contents in a response, resulting in a memory leak from the program address space.
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Out-of-bounds read vulnerability in EnOcean SmartServer IoT that leaks process memory via crafted IP-852 messages and can help bypass ASLR.
A security bypass flaw affecting EnOcean SmartServer and outdated i.LON devices that could be used to circumvent memory defenses and expose memory, contributing to remote compromise of building management and automation systems.
An information disclosure vulnerability in EnOcean SmartServer IoT and i.LON devices caused by insufficient boundary checking in IP-852 extended header parsing, enabling stack memory leakage and ASLR bypass.
A vulnerability in EnOcean SmartServer IoT (<= 4.60.009) where specially crafted LON IP-852 management messages can trigger a memory leak.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.