CVE-2025-20111
HighSummary
Podatność w diagnostyce monitorowania zdrowia przełączników Cisco Nexus 3000 i 9000 w trybie NX-OS może pozwolić nieautoryzowanemu, sąsiedniemu atakującemu na nieoczekiwane przeładowanie urządzenia, co prowadzi do stanu odmowy usługi (DoS). Problem wynika z nieprawidłowego przetwarzania określonych ramek Ethernet.
Risk Assessment
Organizacja może doświadczyć przerw w działaniu usług sieciowych, co może prowadzić do utraty dostępności krytycznych zasobów. Atakujący mogą wykorzystać tę podatność do zakłócenia pracy urządzeń sieciowych.
Recommendation
Zaleca się aktualizację oprogramowania urządzeń Cisco Nexus do najnowszej wersji, aby usunąć tę podatność. Należy również monitorować ruch Ethernet w celu wykrycia potencjalnych prób ataku.
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Original NVD description (English source)
A vulnerability in the health monitoring diagnostics of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, adjacent attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of specific Ethernet frames. An attacker could exploit this vulnerability by sending a sustained rate of crafted Ethernet frames to an affected device. A successful exploit could allow the attacker to cause the device to reload.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

