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CVE-2022-20870— Cisco IOS XE Software for Catalyst Switches MPLS Denial of Service Vulnerability

CVSS 8.6 · High EPSS 0.46% · P64
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I. Basic Information for CVE-2022-20870

Vulnerability Information
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Vulnerability Title
Cisco IOS XE Software for Catalyst Switches MPLS Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the egress MPLS packet processing function of Cisco IOS XE Software for Cisco Catalyst 3650, Catalyst 3850, and Catalyst 9000 Family Switches could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient input validation of IPv4 traffic. An attacker could exploit this vulnerability by sending a malformed packet out of an affected MPLS-enabled interface. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
长度参数不一致性处理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XE Software和Cisco Catalyst 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE Software和Cisco Catalyst都是美国思科（Cisco）公司的产品。Cisco IOS XE Software是一个操作系统。用于企业有线和无线访问，汇聚，核心和WAN的单一操作系统，Cisco IOS XE降低了业务和网络的复杂性。Cisco Catalyst是一系列交换机。 Cisco IOS XE Software Cisco Catalyst 3650、Catalyst 3850、Catalyst 9000存在安全漏洞，该漏洞源于对IPv4流量的输入验证不
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
CiscoCisco IOS XE Software n/a -

II. Public POCs for CVE-2022-20870

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III. Intelligence Information for CVE-2022-20870

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Same Patch Batch · Cisco · 2022-10-10 · 7 CVEs total

CVE-2022-208378.6 HIGHCisco IOS XE Software DNS NAT Protocol Application Layer Gateway Denial of Service Vulnera
CVE-2022-209207.7 HIGHCisco IOS and IOS XE Software SSH Denial of Service Vulnerability
CVE-2022-209157.4 HIGHCisco IOS XE Software IPv6 VPN over MPLS Denial of Service Vulnerability
CVE-2022-209446.1 MEDIUMCisco IOS XE Software for Catalyst 9200 Series Switches Arbitrary Code Execution Vulnerabi
CVE-2022-208305.3 MEDIUMCisco Software-Defined Application Visibility and Control on Cisco vManage Authentication
CVE-2022-208644.6 MEDIUMCisco IOS XE ROM Monitor Software for Catalyst Switches Information Disclosure Vulnerabili

IV. Related Vulnerabilities

Same product: Cisco IOS XE Software
Same vendor: Cisco
Same weakness: CWE-130

V. Comments for CVE-2022-20870

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