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CVE-2024-20434

Quick assessment

Affected
Cisco Cisco IOS XE Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco IOS XE Software是美国思科（Cisco）公司的一个操作系统。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 IOS XE Software存在安全漏洞，该漏洞源于未正确处理带有 VLAN 标记信息的帧。

CVSS 4.3 · Medium EPSS 0.26% · P16
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I. Basic Information for CVE-2024-20434

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the control plane of an affected device. This vulnerability is due to improper handling of frames with VLAN tag information. An attacker could exploit this vulnerability by sending crafted frames to an affected device. A successful exploit could allow the attacker to render the control plane of the affected device unresponsive. The device would not be accessible through the console or CLI, and it would not respond to ping requests, SNMP requests, or requests from other control plane protocols. Traffic that is traversing the device through the data plane is not affected. A reload of the device is required to restore control plane services.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IOS XE Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE Software是美国思科（Cisco）公司的一个操作系统。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 IOS XE Software存在安全漏洞，该漏洞源于未正确处理带有 VLAN 标记信息的帧。
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

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco IOS XE Software 16.6.1 -

II. Public POCs for CVE-2024-20434

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III. Intelligence Information for CVE-2024-20434

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Vendor Advisories for CVE-2024-20434 (1)

Same Patch Batch · Cisco · 2024-09-25 · 15 CVEs total

CVE-2024-20467 8.6 HIGH Cisco IOS XE Software 安全漏洞
CVE-2024-20464 8.6 HIGH Cisco IOS XE Software 安全漏洞
CVE-2024-20480 8.6 HIGH Cisco IOS XE Software 安全漏洞
CVE-2024-20436 8.6 HIGH Cisco IOS XE Software 安全漏洞
CVE-2024-20433 8.6 HIGH Cisco IOS XE Software 安全漏洞
CVE-2024-20455 8.6 HIGH Cisco IOS XE Software 安全漏洞
CVE-2024-20437 8.1 HIGH Cisco IOS XE Software 安全漏洞
CVE-2024-20350 7.5 HIGH Cisco Catalyst Center Static SSH Host Key Vulnerability
CVE-2024-20414 6.5 MEDIUM Cisco IOS XE Software 安全漏洞
CVE-2024-20475 6.4 MEDIUM Cisco SD-WAN vManage Cross-Site Scripting Vulnerability
CVE-2024-20496 6.1 MEDIUM Cisco SD-WAN vEdge Routers Denial of Service Vulnerability
CVE-2024-20465 5.8 MEDIUM Cisco IOS 安全漏洞
CVE-2024-20508 5.8 MEDIUM Cisco UTD Snort IPS Engine Software for Cisco IOS XE Software Security Policy Bypass and D
CVE-2024-20510 4.7 MEDIUM Cisco IOS XE Software 安全漏洞

IV. Related Vulnerabilities

Same product: Cisco IOS XE Software
Same vendor: Cisco
Same weakness: CWE-190

V. Comments for CVE-2024-20434

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