CVE-2026-20245
22h33 +00:00
Deskripsi CVE
Cisco Catalyst SD-WAN Controller Authenticated Privilege Escalation Vulnerability
A vulnerability in the CLI of Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, and Cisco Catalyst SD-WAN Validator, formerly SD-WAN vBond, could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user. To exploit this vulnerability, the attacker must have netadmin privileges on the affected system. This would require valid credentials or exploitation of or . Cisco is not aware of successful exploitation by other methods. Cisco has observed limited cases where the exploitation of this bug resulted in a configuration change pushed to edge devices. Cisco recommends that customers upgrade to the fixed software that is documented in the that was published on May 14, 2026, and verify the configuration of the edge devices.Informasi CVE
Kelemahan Terkait
| Nama Kelemahan | Sumber | |
|---|---|---|
| Improper Encoding or Escaping of Output The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved. |
Metrik
| Metrik | Skor | Tingkat keparahan | CVSS Vektor | Sumber |
|---|---|---|---|---|
| V3.1 | 7.8 | HIGH |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Informasi lebih lanjut
Base: Exploitabilty MetricsThe Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component. Attack Vector This metric reflects the context by which vulnerability exploitation is possible. Local The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Attack Complexity This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability. Low Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success when attacking the vulnerable component. Privileges Required This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability. Low The attacker requires privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources. User Interaction This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component. None The vulnerable system can be exploited without interaction from any user. Base: Scope MetricsThe Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope. Scope Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs. Unchanged An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority. Base: Impact MetricsThe Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve. Confidentiality Impact This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability. High There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server. Integrity Impact This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information. High There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component. Availability Impact This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability. High There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable). Temporal MetricsThe Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability. Environmental MetricsThese metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability. |
CISA KEV (Kerentanan yang Diketahui Dieksploitasi)
Nama kerentanan : Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability
Tindakan yang diperlukan : Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Diketahui Digunakan dalam Kampanye Ransomware : Unknown
Ditambahkan : 2026-06-09 00h00 +00:00
Tindakan jatuh tempo : 2026-06-23 00h00 +00:00
EPSS
Skor EPSS
Persentil EPSS
Produk yang Disebutkan
Konfigurasi 0
Cisco>>Catalyst_sd-wan_manager >> Version Hingga (tidak termasuk) 20.9.9.1
Cisco>>Catalyst_sd-wan_manager >> Version Dari (termasuk) 20.10 Hingga (tidak termasuk) 20.12.5.4
Cisco>>Catalyst_sd-wan_manager >> Version Dari (termasuk) 20.12.6 Hingga (tidak termasuk) 20.12.6.2
Cisco>>Catalyst_sd-wan_manager >> Version Dari (termasuk) 20.13 Hingga (tidak termasuk) 20.15.4.4
Cisco>>Catalyst_sd-wan_manager >> Version Dari (termasuk) 20.15.5 Hingga (tidak termasuk) 20.15.5.2
Cisco>>Catalyst_sd-wan_manager >> Version Dari (termasuk) 20.16 Hingga (tidak termasuk) 20.18.2.2
Cisco>>Catalyst_sd-wan_manager >> Version Dari (termasuk) 26.1 Hingga (tidak termasuk) 26.1.1.1
Cisco>>Catalyst_sd-wan_manager >> Version 20.12.7
Cisco>>Sd-wan_vsmart_controller >> Version Hingga (tidak termasuk) 20.9.9.1
Cisco>>Sd-wan_vsmart_controller >> Version Dari (termasuk) 20.10 Hingga (tidak termasuk) 20.12.5.4
Cisco>>Sd-wan_vsmart_controller >> Version Dari (termasuk) 20.12.6 Hingga (tidak termasuk) 20.12.6.2
Cisco>>Sd-wan_vsmart_controller >> Version Dari (termasuk) 20.13 Hingga (tidak termasuk) 20.15.4.4
Cisco>>Sd-wan_vsmart_controller >> Version Dari (termasuk) 20.15.5 Hingga (tidak termasuk) 20.15.5.2
Cisco>>Sd-wan_vsmart_controller >> Version Dari (termasuk) 20.16 Hingga (tidak termasuk) 20.18.2.2
Cisco>>Sd-wan_vsmart_controller >> Version Dari (termasuk) 26.1 Hingga (tidak termasuk) 26.1.1.1
Cisco>>Sd-wan_vsmart_controller >> Version 20.12.7
Referensi
Tags : Vendor Advisory
Tags : Vendor Advisory
Tags : US Government Resource
