CVE-2026-55490 - CERT CVE
ID CVE-2026-55490
Sažetak 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.
Reference
CVSS
Base: 6.5
Impact: 3.6
Exploitability:2.8
Pristup
VektorSloženostAutentikacija
ADJACENT_NETWORK LOW NONE
Impact
PovjerljivostCjelovitostDostupnost
NONE NONE HIGH
CVSS vektor CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Zadnje važnije ažuriranje 10-07-2026 - 17:37
Objavljeno 07-07-2026 - 22:16