CVE-2024-20446 — NULL Pointer Dereference in Cisco Nx-os Software

CWE-476 — NULL Pointer Dereference4 documents4 sources
Severity
8.6HIGHNVD
EPSS
0.7%
top 27.34%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Cisco Nx-os Software
Timeline
PublishedAug 28

Description

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 proces…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HExploitability: 3.9 | Impact: 4.0

Affected Packages1 packages

▶CVEListV5cisco/cisco_nx-os_software4 versions+3

🔴Vulnerability Details

2
GHSA
GHSA-pwqf-cgf8-rx4x: 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) c↗2024-08-28
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CVEList
Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability↗2024-08-28
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📋Vendor Advisories

1
Cisco
Cisco NX-OS Software DHCPv6 Relay Agent Denial of Service Vulnerability↗2024-08-28
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CVE-2024-20446 — NULL Pointer Dereference in Cisco | cvebase