RCE in Cisco Sd-Wan Solution
CVE-2021-34726
A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands to be executed with root-level privileges on the underlying operating system of an affected device. This vulnerability is due to insufficient input validation on certain CLI commands. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the CLI. The attacker must be authenticated as an administrative user to execute the affected commands. A successful exploit could allow the attacker to execute commands with root-level privileges.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.004 (29.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Sd-wan Solution — versions n/a
- Cisco Sd-wan
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-34726?
- CVE-2021-34726 is a medium-severity vulnerability in Cisco Sd-Wan Solution, classified under Command Injection. CVSS score: 6.7/10. Published 2021-09-23.
- How severe is CVE-2021-34726?
- Medium severity. CVSS v3 base score is 6.7 out of 10.