Command Injection in Cisco Catalyst SD-WAN Manager CLI
CVE-2026-20245 is a command injection vulnerability in the CLI of Cisco Catalyst SD-WAN Manager (formerly SD-WAN vManage). The flaw is caused by insufficient validation of user-supplied input during processing of an uploaded file. An authenticated local attacker can exploit the issue by uploading a crafted file to the affected system, causing the CLI processing path to execute attacker-controlled commands. Successful exploitation results in arbitrary command execution with root privileges on the SD-WAN Manager host. Cisco stated the issue affects all Catalyst SD-WAN Manager deployment models, and observed exploitation in limited cases led to configuration changes being pushed to edge devices.
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Impact, mitigation & remediation
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Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
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Remediation
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Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Recent activity
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A high-severity command injection and privilege escalation vulnerability in Cisco Catalyst SD-WAN Manager caused by improper input validation and insufficient sanitization of uploaded file input, allowing an authenticated attacker to execute arbitrary commands as root.
A command injection vulnerability in the CLI of Cisco Catalyst SD-WAN Manager (formerly SD-WAN vManage) that allows an authenticated local attacker with netadmin privileges to execute arbitrary commands as root via a crafted file.
A high-severity unpatched zero-day in Cisco Catalyst SD-WAN Manager that allows local attackers with low privileges to upload a crafted file, achieve command injection, and escalate privileges to root.
A zero-day privilege escalation vulnerability in the command-line interface of Cisco Catalyst SD-WAN Manager caused by insufficient validation of user-supplied input, allowing authenticated local attackers to execute arbitrary commands as root.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.