A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote malicious user to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device. A successful exploit could allow the malicious user to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuh91645.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
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cisco ios 12.2\\(33\\)sre7a |
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cisco ios_xe 12.2\\(33\\)sre7a |
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