Cisco IOS XE SD-WAN Software Arbitrary Command Execution Vulnerability
Description
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system as the root user. The attacker must be authenticated on the affected device as a low-privileged user to exploit this vulnerability. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by injecting arbitrary commands to a file as a lower-privileged user. The commands are then executed on the device by the root user. A successful exploit could allow the attacker to execute arbitrary commands as the root user.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Authenticated low-privileged local attacker can execute arbitrary commands as root on Cisco IOS XE SD-WAN Software due to insufficient input validation.
Vulnerability
The vulnerability resides in the CLI of Cisco IOS XE SD-WAN Software. It stems from insufficient validation of user-supplied input, allowing a low-privileged authenticated local attacker to inject arbitrary commands into a file that are later executed by the root user [1]. The exact affected versions are detailed in the Cisco advisory [1].
Exploitation
An attacker must have authenticated access to the affected device as a low-privileged user. The exploit involves injecting arbitrary commands into a file via the CLI, which are then executed by the root user without further validation [1].
Impact
Successful exploitation grants the attacker arbitrary command execution as the root user, leading to full compromise of the device's operating system and all data accessible to root [1].
Mitigation
Cisco has released free software updates to address this vulnerability. Customers should upgrade to a fixed version as specified in the Cisco Security Advisory [1]. No workarounds are available; applying the update is the only mitigation.
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- Range: 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-iosxe-sdwarbcmdexec-sspOMUr3mitrevendor-advisoryx_refsource_CISCO
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