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Vulnerability Intelligence Report
Cisco Catalyst SD-WAN Manager Arbitrary File Write Vulnerability

CVE-2026-20262

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.

CISA KEV SSVC: Active Exploitation
CVSS Base Score
6.5
MEDIUM
Exploitability:2.9
Impact Score:3.6
EPSS Probability:1.37%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—

Weaknesses (CWE)

CWE-22 ↗Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products & Versions

Vendor Product Affected Versions
Cisco Cisco Catalyst SD-WAN Manager 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)

References & Technical Advisories

NVD Listing ↗ MITRE Listing ↗ GitHub Advisory ↗
No reference links found.

Threat Intelligence Signals

CISA KEV
ACTIVE IN CATALOG
EPSS Score
1.371%
GitHub Advisory
GHSA-p45r-gcc9-fr7f ↗

Identity & Timeline

StatusPUBLISHED
Assigning AuthorityCisco Systems, Inc. · Hosted Service · USA
Reserved2025-10-08T11:59:15
Published2026-06-15T16:21:09
Last Updated2026-06-17T03:55:46

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