Vulnerability Details : CVE-2018-0476

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 attacker to cause an affected device to reload. The vulnerability is due to improper processing of SIP packets in transit while NAT is performed on an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted SIP packets via UDP port 5060 through an affected device that is performing NAT for SIP packets. A successful exploit could allow an attacker to cause the device to reload, resulting in a denial of service (DoS) condition.
Published 2018-10-05 14:29:05
Updated 2019-10-09 23:32:10
Source Cisco Systems, Inc.
View at NVD,   CVE.org
Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2018-0476

EPSS FAQ
0.30%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 70 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-0476

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.1
 HIGH AV:N/AC:M/Au:N/C:N/I:N/A:C
8.6
6.9
 NIST
5.9
 MEDIUM CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
2.2
3.6
 NIST

CWE ids for CVE-2018-0476

  • Assigned by: ykramarz@cisco.com (Secondary)

References for CVE-2018-0476

Products affected by CVE-2018-0476

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