A vulnerability in the Network Address Translation (NAT) Session Initiation Protocol (SIP) Application Layer Gateway (ALG) of Cisco IOS XE Software could allow an unauthenticated, remote malicious user to cause an affected device to reload. The vulnerability is due to improper processing of transient SIP packets on which NAT is performed on an affected device. An attacker could exploit this vulnerability by using UDP port 5060 to send crafted SIP packets through an affected device that is performing NAT for SIP packets. A successful exploit could allow an malicious user to cause the device to reload, resulting in a denial of service (DoS) condition.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
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cisco ios_xe 15.4\\(3\\)s |
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cisco ios_xe 15.5\\(3\\)s |
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cisco ios_xe 15.6\\(1\\)s |
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cisco ios_xe 16.3.1 |
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cisco ios_xe 16.4.1 |
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cisco ios_xe 16.5.1 |
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cisco ios_xe 16.6.1 |
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cisco ios_xe 16.7.1 |
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cisco ios_xe 16.8.1 |
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cisco ios_xe 16.9.1 |
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cisco ios_xe 16.10.1 |
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cisco ios_xe 16.11.1 |
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cisco ios_xe 16.12.1 |
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