EUVD-2026-34341
GHSA-h4c6-cm2m-h5f6
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionCVE.org
A vulnerability in the CLI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, 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 or . 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 that was published on May 14, 2026, and verify the configuration of the edge devices.
Articles & Coverage 1
AnalysisAI
Local privilege escalation in Cisco Catalyst SD-WAN Manager (formerly SD-WAN vManage) allows an authenticated netadmin user to execute arbitrary commands as root by uploading a crafted file through the CLI. Cisco has observed limited real-world exploitation that resulted in unauthorized configuration changes being pushed to downstream edge devices, though the issue is not currently listed in CISA KEV and no public exploit code has been identified at time of analysis.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must already hold netadmin role privileges on the Cisco Catalyst SD-WAN Manager instance (consistent with the CVSS PR:L) and must have local CLI access to upload a crafted file - there is no remote unauthenticated path. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 score with vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H reflects a local, low-complexity attack requiring low privileges with no user interaction, yielding full confidentiality, integrity, and availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has obtained netadmin credentials - through phishing, credential reuse, or chaining with a separate authentication-bypass vulnerability referenced in the Cisco advisory - logs into the SD-WAN Manager CLI and uploads a file containing crafted shell metacharacters in a field that is later passed unsanitized to a shell command. The injected payload executes as root on the SD-WAN Manager appliance, after which the attacker leverages that root position to push attacker-controlled configuration to downstream edge routers, exactly matching the limited exploitation pattern Cisco has already observed. … |
| Remediation | Patch available per vendor advisory - upgrade Cisco Catalyst SD-WAN Manager to the fixed release identified in Cisco Security Advisory cisco-sa-sdwan-privesc-4uxFrdzx (https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx) published May 14, 2026, and additionally review cisco-sa-sdwan-rpa2-v69WY2SW for related fixes. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all Cisco Catalyst SD-WAN Manager instances and their versions; restrict netadmin role access to only required personnel; enable audit logging for configuration changes. …
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External POC / Exploit Code
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