CVE-2018-0257

A vulnerability in Cisco IOS XE Software running on Cisco cBR Series Converged Broadband Routers could allow an unauthenticated, adjacent attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to the incorrect handling of certain DHCP packets. An attacker could exploit this vulnerability by sending certain DHCP packets to a specific segment of an affected device. A successful exploit could allow the attacker to increase CPU usage on the affected device and cause a DoS condition. Cisco Bug IDs: CSCvg73687.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.3 MEDIUM
ADJACENT_NETWORK
LOW
NONE
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
ciscoCNA
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CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 47%
VendorProductVersion
ciscoios_xe
3.18 ≤
𝑥
≤ 3.18.4
ciscoios_xe
16.6 ≤
𝑥
≤ 16.6.3
ciscoios_xe
16.7 <
𝑥
≤ 16.7.2
ciscoios_xe
15.6\(2\)sp
ciscoios_xe
16.4
ciscoios_xe
16.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration