Buffer overflow in Cisco SD-WAN vEdge 5000 Series Routers and Cisco SD-WAN vEdge Cloud Router - CVE-2020-3369

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Main Vulnerability Database Vulnerabilities #VU31693

Buffer overflow in Cisco SD-WAN vEdge 5000 Series Routers and Cisco SD-WAN vEdge Cloud Router - CVE-2020-3369

Published: July 20, 2020


Vulnerability identifier: #VU31693
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2020-3369
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to improper processing of FTP traffic. A remote attacker can send a specially crafted FTP packets, trigger memory corruption and cause a denial of service condition on the target system.


Affected software

Cisco SD-WAN vEdge 5000 Series Routers
Cisco SD-WAN vEdge Cloud Router

How to mitigate CVE-2020-3369

Install update from vendor's website.

Cisco SD-WAN vEdge 5000 Series Routers - addressed in versions 19.2.2, 20.1.1
Cisco SD-WAN vEdge Cloud Router - addressed in versions 19.2.2, 20.1.1

External References

Related Security Bulletins