CVE-2020-3226CWE-20

Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability

High · published June 3, 2020

CVSS v3.0
8.6
EPSS
2%
Percentile
75.0
In the wild
Unconfirmed
What it is

A vulnerability in the Session Initiation Protocol (SIP) library of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient sanity checks on received SIP messages. An attacker could exploit this vulnerability by sending crafted SIP messages to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service condition.

The record
Technical detail
CVSS v3.0
8.6 · HIGH
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01555 · 75.0th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2020-06-03T17:42Z
EPSS history
Timeline
  • 03 JUN 17:42Z
    Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability
    cvelistv5