Vulnerability Details CVE-2021-1433
A vulnerability in the vDaemon process in Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device. This vulnerability is due to insufficient bounds checking when the device processes traffic. An attacker could exploit this vulnerability by sending crafted traffic to the device. The attacker must have a man-in-the-middle position between Cisco vManage and an associated device that is running an affected version of Cisco IOS XE SD-WAN Software. An exploit could allow the attacker to conduct a controllable buffer overflow attack (and possibly execute arbitrary commands as the root user) or cause a device reload, resulting in a denial of service (DoS) condition.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.009
EPSS Ranking 74.6%
CVSS Severity
CVSS v3 Score 8.1
CVSS v2 Score 9.3
References
Products affected by CVE-2021-1433
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cpe:2.3:o:cisco:ios_xe:16.12.1
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cpe:2.3:o:cisco:ios_xe:16.12.1a
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cpe:2.3:o:cisco:ios_xe:16.12.1c
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cpe:2.3:o:cisco:ios_xe:16.12.1s
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cpe:2.3:o:cisco:ios_xe:16.12.1t
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cpe:2.3:o:cisco:ios_xe:16.12.1w
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cpe:2.3:o:cisco:ios_xe:16.12.1x
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cpe:2.3:o:cisco:ios_xe:16.12.1y
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cpe:2.3:o:cisco:ios_xe:16.12.1z
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cpe:2.3:o:cisco:ios_xe:16.12.1za
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cpe:2.3:o:cisco:ios_xe:16.12.2
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cpe:2.3:o:cisco:ios_xe:16.12.2a
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cpe:2.3:o:cisco:ios_xe:16.12.2s
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cpe:2.3:o:cisco:ios_xe:16.12.2t
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cpe:2.3:o:cisco:ios_xe:16.12.3
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cpe:2.3:o:cisco:ios_xe:16.12.3a
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cpe:2.3:o:cisco:ios_xe:16.12.3s
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cpe:2.3:o:cisco:ios_xe:17.2.1
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cpe:2.3:o:cisco:ios_xe:17.2.1a
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cpe:2.3:o:cisco:ios_xe:17.2.1r
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cpe:2.3:o:cisco:ios_xe:17.2.1v
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cpe:2.3:o:cisco:ios_xe:3.15.1xbs
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cpe:2.3:o:cisco:ios_xe:3.15.2xbs