cisco-sa-sdwan-arbfw-c2rZvQ

csafUScisco_csaf

Cisco Catalyst SD-WAN Manager Arbitrary File Write Vulnerability

view advisory published 2026-06-15

A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker to create a file or overwrite any file on the filesystem of an affected system. This vulnerability exists because the affected software does not properly validate user-supplied input during a file upload process. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected API endpoint of the affected system. A successful exploit could allow the attacker to create or overwrite any file on the underlying operating system. This file could later be used to elevate to root. To exploit this vulnerability, the attacker must have valid credentials with at least write access. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-20262US—OT criticalKEV
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker to create a file or overwrite any file on the…
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