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Cisco Catalyst SD-WAN Controller, Catalyst SD-WAN Manager, and Catalyst SD-WAN Validator Authenticated Privilege Escalation Vulnerability

unknownknown exploitedpublic exploitCVE-2026-20182CVE-2026-20127CVE-2026-20245
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
A vulnerability in the CLI of Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, and Cisco Catalyst SD-WAN Validator , formerly SD-WAN vBond, could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user. To exploit this vulnerability, the attacker must have netadmin privileges on the affected system. This would require valid credentials or exploitation of CVE-2026-20182 or CVE-2026-20127 . Cisco is not aware of successful exploitation by other methods. Cisco has observed limited cases where the exploitation of this bug resulted in a configuration change pushed to edge devices. Cisco recommends that customers upgrade to the fixed software that is documented in the Catalyst SD-WAN Security Advisory that was published on May 14, 2026, and verify the configuration of the edge devices. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. Important: To preserve possible indicators of compromise, customers should issue the request admin-tech command from each of the control components in the SD-WAN deployment before upgrading. After the admin-tech file has been collected, software should be upgraded at the earliest opportunity. Before upgrading an SD-WAN deployment to a fixed release, retain relevant logs. After upgrading, verify that the system has not been compromised by checking the logs for the indicators of compromise as documented in this advisory. If the logs show indicators of compromise and the system is confirmed to be compromised, apply

CSIRTS triage

vendor: Ciscoproduct: Catalyst SD-WAN Controller, Catalyst SD-WAN Manager, Catalyst SD-WAN ValidatorPrivilege escalation
What
The vulnerability allows an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file.
Who is affected
Authenticated local users with netadmin privileges on the affected systems.
Urgency
Remediation is necessary due to the potential for privilege escalation and active exploitation.
Action
Apply the latest security updates from Cisco.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Cisco Security Advisories (INTL · vendor-psirt · site)
Severity
unknown
Published
2026-06-12
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx?vs_f=Cisco%20Security%20Advisory%26vs_cat=Security%20Intelligence%26vs_type=RSS%26vs_p=Cisco%20Catalyst%20SD-WAN%20Controller,%20Catalyst%20SD-WAN%20Manager,%20and%20Catalyst%20SD-WAN%20Validator%20Authenticated%20Privilege%20Escalation%20Vulnerability%26vs_k=1

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-20182coverage & exploitation statusNVD · CVE.org
CVE-2026-20127coverage & exploitation statusNVD · CVE.org
CVE-2026-20245coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Cisco Catalyst SD-WAN

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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