8.6

CVE-2024-20446

A vulnerability in the DHCPv6 relay agent of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

This vulnerability is due to improper handling of specific fields in a DHCPv6 RELAY-REPLY message. An attacker could exploit this vulnerability by sending a crafted DHCPv6 packet to any IPv6 address that is configured on an affected device. A successful exploit could allow the attacker to cause the dhcp_snoop process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition.
Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
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Daten sind bereitgestellt durch das CVE Programm von Authorized Data Publishers (ADP) (Unstrukturiert)
Herstellercisco
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Produkt nx-os
Default Statusunknown
Version 10.2\(1\)
Status affected
Herstellercisco
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Produkt nx-os
Default Statusunknown
Version 10.2\(1q\)
Status affected
Herstellercisco
≫
Produkt nx-os
Default Statusunknown
Version 9.3\(9\)
Status affected
Herstellercisco
≫
Produkt nx-os
Default Statusunknown
Version 8.2\(11\)
Status affected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.41% 0.603
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
psirt@cisco.com 8.6 3.9 4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.