Path Traversal in Cisco Catalyst_sd-wan_manager

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 ex…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-20262?
CVE-2026-20262 is a medium-severity vulnerability in Cisco Catalyst_sd-wan_manager, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-06-15.
How severe is CVE-2026-20262?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2026-20262 known to be exploited?
Yes. CVE-2026-20262 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-06-15), indicating it is being actively exploited. 1 public proof-of-concept repositories are indexed.