Out-of-bounds write in Cisco SD-WAN vEdge Routers and Cisco SD-WAN vEdge Cloud Router - CVE-2024-20496

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Main Vulnerability Database Vulnerabilities #VU97721

Out-of-bounds write in Cisco SD-WAN vEdge Routers and Cisco SD-WAN vEdge Cloud Router - CVE-2024-20496

Published: September 26, 2024


Vulnerability identifier: #VU97721
CSH Severity: Low
CVSS v4: 6 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-20496
CWE-ID: CWE-787
Exploitation vector: Adjecent network
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the UDP packet validation code. A remote attacker on the local network can trigger an out-of-bounds write and perform a denial of service (DoS) attack.


Affected software

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

How to mitigate CVE-2024-20496

Install updates from vendor's website.

Cisco SD-WAN vEdge Routers - addressed in versions 20.6.6, 20.9.4
Cisco SD-WAN vEdge Cloud Router - addressed in versions 20.6.6, 20.9.4

External References

Related Security Bulletins