CVE-2026-56116
dhcpcd Memory Leak DoS via IPv6 Router Advertisement Handling
Vexday Risk Score
21Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 7.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Ciclo de vida
23 jun 2026Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
dhcpcd through 10.3.2, fixed in commit 708b4a5, contains a memory leak vulnerability in the IPv6 Router Advertisement route information handling that allows an unauthenticated same-link attacker to cause denial of service by sending crafted Router Advertisements. Attackers can repeatedly send Router Advertisements containing Route Information options with a lifetime of zero, triggering unfreed allocations in routeinfo_findalloc() that cause linear memory exhaustion and eventual daemon crash.
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Productos afectados
NetworkConfiguration · dhcpcd¿Quieres saber si tu infraestructura está expuesta a esto?
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