#VU86912 Buffer overflow in Cisco Systems, Inc products - CVE-2024-20267
Vulnerability identifier: #VU86912
Vulnerability risk: High
CVSSv4.0: 6.6 [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:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Cisco NX-OS
Operating systems & Components /
Operating system
Cisco Nexus 3000 Series Switches
Hardware solutions /
Routers & switches, VoIP, GSM, etc
Nexus 5500 Platform Switches
Hardware solutions /
Routers & switches, VoIP, GSM, etc
Nexus 5600 Platform Switches
Hardware solutions /
Routers & switches, VoIP, GSM, etc
Nexus 6000 Series Switches
Hardware solutions /
Routers & switches, VoIP, GSM, etc
Nexus 7000 Series Switches
Hardware solutions /
Routers & switches, VoIP, GSM, etc
Cisco Nexus 9000 Series Switches NX-OS Mode
Hardware solutions /
Routers & switches, VoIP, GSM, etc
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the handling of MPLS traffic. A remote attacker can trigger memory corruption and cause a denial of service on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Cisco NX-OS: 6.0(2)U2(1) - 10.4(1)
Cisco Nexus 3000 Series Switches: All versions
Nexus 5500 Platform Switches: All versions
Nexus 5600 Platform Switches: All versions
Nexus 6000 Series Switches: All versions
Nexus 7000 Series Switches: All versions
Cisco Nexus 9000 Series Switches NX-OS Mode: All versions
External links
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipv6-mpls-dos-R9ycXkwM
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
