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 a lower-privileged, single-task user account.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is in the KEV database since today.

No EPSS score available.

Exploitation active

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Cisco Cisco Catalyst SD-WAN Manager unknown
Version Status Constraints
20.1.12 affected —
19.2.1 affected —
18.4.4 affected —
18.4.5 affected —
20.1.1.1 affected —
20.1.1 affected —
19.3.0 affected —
19.2.2 affected —
19.2.099 affected —
18.3.6 affected —
18.3.7 affected —
19.2.0 affected —
18.3.8 affected —
19.0.0 affected —
19.1.0 affected —
18.4.302 affected —
18.4.303 affected —
19.2.097 affected —
19.2.098 affected —
17.2.10 affected —
18.3.6.1 affected —
19.0.1a affected —
18.2.0 affected —
18.4.3 affected —
18.4.1 affected —
17.2.8 affected —
18.3.3.1 affected —
18.4.0 affected —
18.3.1 affected —
17.2.6 affected —
17.2.9 affected —
18.3.4 affected —
17.2.5 affected —
18.3.1.1 affected —
18.3.5 affected —
18.4.0.1 affected —
18.3.3 affected —
17.2.7 affected —
17.2.4 affected —
18.3.0 affected —
19.2.3 affected —
18.4.501_ES affected —
20.3.1 affected —
20.1.2 affected —
19.2.929 affected —
19.2.31 affected —
20.3.2 affected —
19.2.32 affected —
20.3.2_925 affected —
20.3.2.1 affected —
20.3.2.1_927 affected —
18.4.6 affected —
20.1.2_937 affected —
20.4.1 affected —
20.3.2_928 affected —
20.3.2_929 affected —
20.4.1.0.1 affected —
20.3.2.1_930 affected —
19.2.4 affected —
20.5.0.1.1 affected —
20.4.1.1 affected —
20.3.3 affected —
19.2.4.0.1 affected —
20.3.2_937 affected —
20.3.3.1 affected —
20.5.1 affected —
20.1.3 affected —
20.3.3.0.4 affected —
20.3.3.1.2 affected —
20.3.3.1.1 affected —
20.4.1.2 affected —
20.3.3.0.2 affected —
20.4.1.1.5 affected —
20.4.1.0.01 affected —
20.4.1.0.02 affected —
20.3.3.1.7 affected —
20.3.3.1.5 affected —
20.5.1.0.1 affected —
20.3.3.1.10 affected —
20.3.3.0.8 affected —
20.4.2 affected —
20.4.2.0.1 affected —
20.3.4 affected —
20.3.3.0.14 affected —
19.2.4.0.8 affected —
19.2.4.0.9 affected —
20.3.4.0.1 affected —
20.3.2.0.5 affected —
20.6.1 affected —
20.5.1.0.2 affected —
20.3.3.0.17 affected —
20.6.1.1 affected —
20.6.0.18.3 affected —
20.3.2.0.6 affected —
20.6.0.18.4 affected —
20.4.2.0.2 affected —
20.3.3.0.16 affected —
20.3.4.0.5 affected —
20.6.1.0.1 affected —
20.3.4.0.6 affected —
20.6.2 affected —
20.7.1EFT2 affected —
20.3.4.0.9 affected —
20.3.4.0.11 affected —
20.4.2.0.4 affected —
20.3.3.0.18 affected —
20.7.1 affected —
20.6.2.1 affected —
20.3.4.1 affected —
20.5.1.1 affected —
20.4.2.1 affected —
20.4.2.1.1 affected —
20.3.4.1.1 affected —
20.3.813 affected —
20.3.4.0.19 affected —
20.4.2.2.1 affected —
20.5.1.2 affected —
20.3.4.2 affected —
20.3.814 affected —
20.4.2.2 affected —
20.6.2.2 affected —
20.3.4.2.1 affected —
20.7.1.1 affected —
20.3.4.1.2 affected —
20.6.2.2.2 affected —
20.3.4.0.20 affected —
20.6.2.2.3 affected —
20.4.2.2.2 affected —
20.3.5 affected —
20.6.2.0.4 affected —
20.4.2.2.3 affected —
20.3.4.0.24 affected —
20.6.2.2.7 affected —
20.6.3 affected —
20.3.4.2.2 affected —
20.4.2.2.4 affected —
20.7.1.0.2 affected —
20.8.1 affected —
20.3.5.0.8 affected —
20.3.5.0.9 affected —
20.4.2.2.8 affected —
20.3.5.0.7 affected —
20.6.3.0.7 affected —
20.6.3.0.5 affected —
20.6.3.0.10 affected —
20.6.3.0.2 affected —
20.7.2 affected —
20.9.1EFT2 affected —
20.6.3.0.11 affected —
20.6.3.1 affected —
20.6.3.0.14 affected —
20.6.4 affected —
20.9.1 affected —
20.6.3.0.19 affected —
20.6.3.0.18 affected —
20.3.6 affected —
20.9.1.1 affected —
20.6.3.0.23 affected —
20.6.4.0.4 affected —
20.6.3.0.25 affected —
20.6.5 affected —
20.6.3.0.27 affected —
20.9.2 affected —
20.9.2.1 affected —
20.6.3.0.29 affected —
20.6.3.0.31 affected —
20.6.3.0.32 affected —
20.10.1 affected —
20.6.3.0.33 affected —
20.9.2.0.01 affected —
20.9.1_LI_Images affected —
20.10.1_LI_Images affected —
20.9.2_LI_Images affected —
20.3.7 affected —
20.9.3 affected —
20.6.5.1 affected —
20.11.1 affected —
20.11.1_LI_Images affected —
20.9.3_LI_ Images affected —
20.6.3.1.1 affected —
20.9.3.0.2 affected —
20.6.5.1.2 affected —
20.9.3.0.3 affected —
20.4.2.3 affected —
20.6.3.2 affected —
20.6.4.1 affected —
20.6.3.0.38 affected —
20.6.3.0.39 affected —
20.3.5.1 affected —
20.3.4.3 affected —
20.9.3.1 affected —
20.3.3.2 affected —
20.6.5.2 affected —
20.3.7.1 affected —
20.10.1.1 affected —
20.6.5.2.1 affected —
20.3.4.0.25 affected —
20.6.2.2.4 affected —
20.6.1.2 affected —
20.11.1.1 affected —
20.9.3.0.5 affected —
20.3.4.0.26 affected —
20.6.5.1.3 affected —
20.6.3.0.40 affected —
20.1.3.1 affected —
20.9.2.2 affected —
20.6.5.2.3 affected —
20.6.5.1.4 affected —
20.6.5.3 affected —
20.6.3.0.41 affected —
20.9.3.0.7 affected —
20.6.5.1.5 affected —
20.9.3.0.4 affected —
20.6.4.0.19 affected —
20.6.5.1.6 affected —
20.9.3.0.8 affected —
20.6.3.3 affected —
20.3.7.2 affected —
20.6.5.4 affected —
20.6.5.1.7 affected —
20.9.3.0.12 affected —
20.6.4.2 affected —
20.6.5.5 affected —
20.9.3.2 affected —
20.11.1.2 affected —
20.6.3.4 affected —
20.10.1.2 affected —
20.6.5.1.9 affected —
20.9.3.0.16 affected —
20.6.3.0.45 affected —
20.6.5.1.10 affected —
20.9.3.0.17 affected —
20.6.5.2.4 affected —
20.6.4.0.21 affected —
20.9.3.0.18 affected —
20.6.3.0.46 affected —
20.6.3.0.47 affected —
20.9.2.3 affected —
20.9.3.2_LI_Images affected —
20.9.3.0.21 affected —
20.9.3.0.20 affected —
20.9.4_LI_Images affected —
20.9.4 affected —
20.6.5.1.11 affected —
20.12.1 affected —
20.12.1_LI_Images affected —
20.6.5.1.13 affected —
20.9.3.0.23 affected —
20.6.5.2.8 affected —
20.9.4.1 affected —
20.9.4.1_LI_Images affected —
20.9.3.0.25 affected —
20.9.3.0.24 affected —
20.6.5.1.14 affected —
20.3.8 affected —
20.6.6 affected —
20.9.3.0.26 affected —
20.6.3.0.51 affected —
20.9.3.0.29 affected —
20.12.2 affected —
20.12.2_LI_Images affected —
20.6.6.0.1 affected —
20.13.1_LI_Images affected —
20.9.4.0.4 affected —
20.13.1 affected —
20.9.4.1.1 affected —
20.9.5 affected —
20.9.5_LI_Images affected —
20.12.3_LI_Images affected —
20.12.3 affected —
20.9.4.1.3 affected —
20.6.7 affected —
20.9.5.1 affected —
20.9.5.1_LI_Images affected —
20.9.4.1.6 affected —
20.14.1 affected —
20.14.1_LI_Images affected —
20.9.5.2 affected —
20.9.5.2.1 affected —
20.9.5.2_LI_Images affected —
20.12.3.1 affected —
20.12.4 affected —
20.15.1_LI_Images affected —
20.15.1 affected —
20.9.5.1.4 affected —
20.9.5.2.7 affected —
20.9.5.2.13 affected —
20.9.6 affected —
20.9.6_LI_Images affected —
20.9.5.2.14 affected —
20.6.8 affected —
20.12.4.0.03 affected —
20.16.1 affected —
20.16.1_LI_Images affected —
20.12.4_LI_Images affected —
20.9.5.2.16 affected —
20.12.4.0.4 affected —
20.12.401 affected —
20.9.5.3 affected —
20.9.5.3_LI_Images affected —
20.12.4.1_LI_Images affected —
20.12.4.1 affected —
20.9.5.2.21 affected —
20.9.6.0.3 affected —
20.12.4.0.6 affected —
20.15.2_LI_Images affected —
20.15.2 affected —
20.12.4_Monthly_ES5 affected —
20.12.5 affected —
20.12.5_LI_Images affected —
20.9.7_LI _Images affected —
20.9.7 affected —
20.15.3 affected —
20.15.3_ LI _Images affected —
20.12.501 affected —
20.12.5.1_LI_Images affected —
20.12.5.1 affected —
20.12.5.2_LI_Images affected —
20.12.5.2 affected —
20.15.3.1 affected —
20.15.4_LI_Images affected —
20.15.4 affected —
20.9.7.1_LI _Images affected —
20.9.7.1 affected —
20.18.1 affected —
20.18.1_LI_Images affected —
20.12.6_LI_Images affected —
20.12.6 affected —
20.12.5.1.01 affected —
26.0.1 affected —
20.9.8 affected —
20.9.8_LI_Images affected —
20.18.2 affected —
20.15.4.1_LI_Images affected —
20.15.4.1 affected —
20.18.2_LI_Images affected —
26.1.1 affected —
26.1.1_LI_Images affected —
20.18.2.1_LI_Images affected —
20.18.2.1 affected —
20.15.4.2_LI_Images affected —
20.15.4.2 affected —
20.12.6.1 affected —
20.12.6.1_LI_Images affected —
20.12.5.3 affected —
20.12.5.3_LI_Images affected —
20.9.8.2_LI_Images affected —
20.9.8.2 affected —
20.18.3 affected —
20.18.3_LI_Images affected —
20.15.5 affected —
20.15.5_LI_Images affected —
20.12.7 affected —
20.12.7_LI_Images affected —
20.9.9 affected —
20.9.9_LI_Images affected —
20.18.2.2 affected —
20.18.2.2_LI_Images affected —
20.12.5.4 affected —
20.12.5.4_LI_ Images affected —
20.12.7.1_LI_Images affected —
20.12.6.2_LI_Images affected —
20.12.7.1 affected —
20.15.5.1 affected —
20.15.4.3 affected —
20.15.4.3_LI_Images affected —
20.15.5.1_LI_Images affected —
20.12.6.2 affected —
20.15.5.2 affected —
20.15.5.2_LI_Images affected —
26.1.1.1_LI_Images affected —
20.15.4.4 affected —
20.15.4.4_LI_Images affected —
26.1.1.1 affected —
20.9.9.1_LI_Images affected —
20.9.9.1 affected —

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-arbfw-c2rZvQ cve-icon cve-icon
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20262 cve-icon
History

Mon, 15 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 15 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-06-15T00:00:00+00:00', 'dueDate': '2026-06-29T00:00:00+00:00'}

Mon, 15 Jun 2026 18:00:00 +0000

Type Values Removed Values Added
Description 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 a lower-privileged, single-task user account.
Title Cisco Catalyst SD-WAN Manager Arbitrary File Write Vulnerability
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-06-15T19:58:24.173Z

Reserved: 2025-10-08T11:59:15.402Z

Link: CVE-2026-20262

cve-icon Vulnrichment

Updated: 2026-06-15T19:18:39.364Z

cve-icon NVD

Status : Received

Published: 2026-06-15T18:16:34.820

Modified: 2026-06-15T18:16:34.820

Link: CVE-2026-20262

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses