#VU47109 NULL pointer dereference in Cisco Systems, Inc products - CVE-2020-3407
Published: September 24, 2020 / Updated: September 25, 2020
Vulnerability identifier: #VU47109
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-3407
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco IOS
Cisco IOS XR
Cisco NX-OS
Cisco IOS
Cisco IOS XR
Cisco NX-OS
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error n the RESTCONF and NETCONF-YANG access control list (ACL) function of Cisco IOS XE Software c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.