#VU49899 Buffer overflow in Cisco Systems, Inc products - CVE-2021-1301

Vulnerability identifier: #VU49899

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2021-1301

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
Cisco SD-WAN
Cisco IOS XE SD-WAN
Cisco SD-WAN vBond Orchestrator
Cisco SD-WAN vManage
Cisco IOS XE
Cisco SD-WAN vEdge Cloud Router
Cisco SD-WAN vEdge Routers
Cisco SD-WAN vSmart Controller

Software vendor:
Cisco Systems, Inc

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the NETCONF subsystem. A remote authenticated attacker can trigger memory corruption and cause a denial of service condition on the target system.

Install updates from vendor's website.

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-bufovulns-B5NrSHbj