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CVE-2025-20212

Quick assessment

Affected
Cisco Cisco Meraki MX Firmware
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 Meraki Z和Cisco Meraki MX都是美国思科（Cisco）公司的产品。Cisco Meraki Z是一款企业级防火墙、VPN 网关和路由器。Cisco Meraki MX是一款多功能安全和 SD-WAN 企业设备。 Cisco Meraki Z和Cisco Meraki MX存在安全漏洞，该漏洞源于变量未初始化，可能导致拒绝服务。

CVSS 7.7 · High EPSS 0.68% · P51
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I. Basic Information for CVE-2025-20212

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z Series devices could allow an authenticated, remote attacker to cause a denial of service (DoS) condition in the Cisco AnyConnect service on an affected device. To exploit this vulnerability, the attacker must have valid VPN user credentials on the affected device. This vulnerability exists because a variable is not initialized when an SSL VPN session is established. An attacker could exploit this vulnerability by supplying crafted attributes while establishing an SSL VPN session with an affected device. A successful exploit could allow the attacker to cause the Cisco AnyConnect VPN server to restart, resulting in the failure of the established SSL VPN sessions and forcing remote users to initiate a new VPN connection and reauthenticate. A sustained attack could prevent new SSL VPN connections from being established. Note: When the attack traffic stops, the Cisco AnyConnect VPN server recovers without manual intervention.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用未经初始化的变量
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Meraki Z和Cisco Meraki MX 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Meraki Z和Cisco Meraki MX都是美国思科（Cisco）公司的产品。Cisco Meraki Z是一款企业级防火墙、VPN 网关和路由器。Cisco Meraki MX是一款多功能安全和 SD-WAN 企业设备。 Cisco Meraki Z和Cisco Meraki MX存在安全漏洞，该漏洞源于变量未初始化，可能导致拒绝服务。
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 Meraki MX Firmware 16.2 -

II. Public POCs for CVE-2025-20212

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III. Intelligence Information for CVE-2025-20212

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Same Patch Batch · Cisco · 2025-04-02 · 4 CVEs total

CVE-2025-20139 7.5 HIGH Cisco Enterprise Chat and Email 安全漏洞
CVE-2025-20120 6.1 MEDIUM Cisco Evolved Programmable Network Manager和Cisco Prime Infrastructure 跨站脚本漏洞
CVE-2025-20203 4.8 MEDIUM Cisco Evolved Programmable Network Manager和Cisco Prime Infrastructure 跨站脚本漏洞

IV. Related Vulnerabilities

Same product: Cisco Meraki MX Firmware
Same vendor: Cisco
Same weakness: CWE-457

V. Comments for CVE-2025-20212

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