Cisco SD-WAN Solution Privilege Escalation Vulnerability
Description
A vulnerability in the user group configuration of the Cisco SD-WAN Solution could allow an authenticated, local attacker to gain elevated privileges on an affected device. The vulnerability is due to a failure to properly validate certain parameters included within the group configuration. An attacker could exploit this vulnerability by writing a crafted file to the directory where the user group configuration is located in the underlying operating system. A successful exploit could allow the attacker to gain root-level privileges and take full control of the device.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Cisco SD-WAN Solution allows authenticated local attacker to gain root privileges via crafted file in user group configuration directory.
Vulnerability
The vulnerability resides in the user group configuration of the Cisco SD-WAN Solution. Due to improper validation of parameters within the group configuration, an authenticated local attacker can write a crafted file to the directory where the user group configuration is stored. Affected versions include Cisco SD-WAN Solution releases prior to the fixed releases detailed in the Cisco advisory [1].
Exploitation
An attacker must have local authenticated access to the affected device. The exploit involves writing a specially crafted file to the user group configuration directory. Once the file is processed by the device, the attacker's privileges are elevated. No additional user interaction is required beyond the initial authentication.
Impact
Successful exploitation allows the attacker to gain root-level privileges, resulting in full control of the device. This compromises the confidentiality, integrity, and availability of the system.
Mitigation
Cisco has released free software updates that address this vulnerability. Users should upgrade to the fixed versions indicated in the advisory [1]. No workarounds are available. Customers without service contracts should contact the Cisco TAC for assistance [1].
AI Insight generated on May 25, 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
2- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-sdwan-sol-escalmitrevendor-advisoryx_refsource_CISCO
- www.securityfocus.com/bid/106719mitrevdb-entryx_refsource_BID
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