MEDIUM CISA KEV

CVE-2026-20262

CVSS v3

6.5

MEDIUM

EPSS Score

1.7 %

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

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 explo

CISA Known Exploited Vulnerability

Date Added: 2026-06-15
Patch Due Date: 2026-06-29
Ransomware Use: Unknown

Technical details

Published: 2026-06-15

Frequently asked questions

What is CVE-2026-20262?

Is CVE-2026-20262 actively exploited?

Yes. CVE-2026-20262 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-06-29.

What is the CVSS score for CVE-2026-20262?

CVE-2026-20262 has a CVSS v3 base score of 6.5 (MEDIUM severity).

Is CVE-2026-20262 affecting your environment?

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