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CVE-2024-20496— Cisco SD-WAN vEdge Routers Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco SD-WAN vEdge Cloud
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 SD-WAN vEdge是美国思科（Cisco）公司的一款路由器。 Cisco SD-WAN vEdge存在安全漏洞，该漏洞源于未正确处理特定类型的格式错误的 UDP 数据包。

CVSS 6.1 · Medium EPSS 0.22% · P12
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I. Basic Information for CVE-2024-20496

Vulnerability Information
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Vulnerability Title
Cisco SD-WAN vEdge Routers Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the UDP packet validation code of Cisco SD-WAN vEdge Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected system. This vulnerability is due to incorrect handling of a specific type of malformed UDP packet. An attacker in a machine-in-the-middle position could exploit this vulnerability by sending crafted UDP packets to an affected device. A successful exploit could allow the attacker to cause the device to reboot, resulting in a DoS condition on the affected system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco SD-WAN vEdge 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco SD-WAN vEdge是美国思科（Cisco）公司的一款路由器。 Cisco SD-WAN vEdge存在安全漏洞，该漏洞源于未正确处理特定类型的格式错误的 UDP 数据包。
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 SD-WAN vEdge Cloud 19.2.1 -
Cisco Cisco SD-WAN vEdge router 18.4.303 -

II. Public POCs for CVE-2024-20496

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III. Intelligence Information for CVE-2024-20496

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Vendor Advisories for CVE-2024-20496 (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-2024-20465 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
CVE-2024-20434 4.3 MEDIUM Cisco IOS XE Software 安全漏洞

IV. Related Vulnerabilities

Same product: Cisco SD-WAN vEdge Cloud
Same vendor: Cisco
Same weakness: CWE-787

V. Comments for CVE-2024-20496

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