CVE-2019-12657
High
Description
A vulnerability in Unified Threat Defense (UTD) in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper validation of IPv6 packets through the UTD feature. An attacker could exploit this vulnerability by sending IPv6 traffic through an affected device that is configured with UTD. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition.
SeverityHigh
CVSS7.5
Exploit probability81. percentile2%
Product
Cisco Ios Xe
PublishedSep 25, 2019
First seenSep 25, 2019
Weakness typeCWE-20Improper input validation
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco ios_xe | 16.3.6 | — |
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