Cisco SD-WAN Software Privilege Escalation Vulnerability
Description
A vulnerability in Cisco SD-WAN Software could allow an authenticated, local attacker to elevate privileges to root on the underlying operating system. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by providing crafted options to a specific command. A successful exploit could allow the attacker to gain root privileges.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Cisco SD-WAN Software contains a privilege escalation vulnerability allowing an authenticated local attacker to gain root privileges via crafted command options.
Vulnerability
Cisco SD-WAN Software, including versions prior to the fixed releases, contains a privilege escalation vulnerability (CVE-2020-3594) due to insufficient input validation. An authenticated local attacker can exploit this by providing crafted options to a specific command. The vulnerability affects Cisco SD-WAN Software on various platforms. [1]
Exploitation
An attacker must have local access to the affected system with valid authentication credentials. The attacker then executes a specific command with crafted options that bypass input validation, leading to privilege escalation. No user interaction is required beyond the attacker's own actions. [1]
Impact
Successful exploitation allows the attacker to elevate privileges to root on the underlying operating system, gaining full control over the device. This could lead to complete compromise of confidentiality, integrity, and availability. [1]
Mitigation
Cisco has released software updates to address this vulnerability. Customers are advised to upgrade to the fixed versions as specified in the Cisco Security Advisory [1]. No workarounds are mentioned. The advisory provides details on obtaining the updates.
AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- Cisco/Cisco SD-WAN Solutionv5Range: n/a
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vepestd-8C3J9Vcmitrevendor-advisoryx_refsource_CISCO
News mentions
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