CVE-2021-1466: Cisco SD-WAN vDaemon Buffer Overflow Vulnerability
First published: Fri Nov 15 2024(Updated: )
A vulnerability in the vDaemon service of Cisco SD-WAN vManage Software could allow an authenticated, local attacker to cause a buffer overflow on an affected system, resulting in a denial of service (DoS) condition. The vulnerability is due to incomplete bounds checks for data that is provided to the vDaemon service of an affected system. An attacker could exploit this vulnerability by sending malicious data to the vDaemon listening service on the affected system. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system, which could allow the attacker to cause the vDaemon listening service to reload and result in a DoS condition.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco SD-WAN vManage |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-1466?
CVE-2021-1466 has a severity rating of high due to the potential for denial of service.
How do I fix CVE-2021-1466?
To fix CVE-2021-1466, upgrade to the latest version of Cisco SD-WAN vManage Software that includes security patches addressing this vulnerability.
Which software is affected by CVE-2021-1466?
CVE-2021-1466 affects Cisco SD-WAN vManage Software specifically.
What type of attack does CVE-2021-1466 allow?
CVE-2021-1466 allows an authenticated, local attacker to exploit the vulnerability leading to a buffer overflow and cause a denial of service.
Is authentication required to exploit CVE-2021-1466?
Yes, CVE-2021-1466 requires an attacker to be authenticated and local to the affected system to exploit the vulnerability.
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