Buffer overflow in Cisco SD-WAN vEdge Routers and Cisco SD-WAN vEdge Cloud Router - CVE-2021-1509
Published: May 6, 2021
Vulnerability identifier: #VU52927
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-1509
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco SD-WAN vEdge Routers
Cisco SD-WAN vEdge Cloud Router
Cisco SD-WAN vEdge Routers
Cisco SD-WAN vEdge Cloud Router
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the vDaemon process in Cisco SD-WAN vEdge Software. A remote user can send specially crafted traffic to the system, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2021-1509
Install updates from vendor's website.