漏洞信息
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Vulnerability Title
OpenWrt: EAD Integer Underflow → Pre-Auth Denial of Service
Vulnerability 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.
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
整数下溢(超界折返)
Vulnerability Title
OpenWrt 数字错误漏洞
Vulnerability Description
OpenWrt是OpenWRT社区开源的一套针对嵌入式设备的Linux操作系统。 OpenWrt 25.12.5之前版本存在数字错误漏洞,该漏洞源于Emergency Access Daemon的handle_send_a()函数中存在整数下溢,可能导致未经身份验证的攻击者通过发送特制UDP数据包使守护进程崩溃。
CVSS Information
N/A
Vulnerability Type
N/A