CyberRota Analysis
AI-GeneratedOpenWrt, a Linux-based operating system for embedded devices, is vulnerable to an integer underflow in the Emergency Access Daemon's handle_send_a() function, allowing unauthenticated attackers on the local network to crash the daemon by sending a specially crafted UDP packet. This vulnerability could lead to denial-of-service conditions, impacting the availability of the affected devices. Users and administrators of OpenWrt versions prior to v25.12.5 should prioritize updating to the fixed version to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
OpenWrt is a Linux operating system targeting embedded devices. Before v25.12.5, an integer underflow in handle_send_a() of the Emergency Access Daemon allows any unauthenticated attacker on the local network to crash the daemon by sending a single crafted UDP packet. The message length underflows before a bounds check and is then passed to memcpy as a very large size. This issue is fixed v25.12.5.
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