CVE-2026-20262

Cisco Catalyst SD-WAN Manager: Directory or Path Traversal

As of , CVE-2026-20262 in Cisco Catalyst SD-WAN Manager is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.

Exploited
Yes: CISA listed it on 15 June 2026
US federal deadline
29 June 202614 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.28Higher than 98% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
Vendor advice: sec.cloudapps.cisco.comLinks below, from CISA's entry.

What CISA says to do

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.

CISA's required action

What the flaw is

Cisco Catalyst SD-WAN Manager contains a directory or path traversal vulnerability that could allow an authenticated, remote attacker to create a file or overwrite any file on the filesystem of an affected system.

CISA's 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.

The CVE record's description, from cisco

CVE published
15 June 2026
Assigned by
cisco
CVSS
6.5 Medium (CVSS 3.1, from the CNA)
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
partial

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

Catalyst SD-WAN Manager: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2026-76504Hex EncodingCisco Catalyst SD-WAN ManagerPatch nowForensic triage required by CISA; listed in the last 14 days0.02
CVE-2026-20133Exposure of Sensitive Information to an Unauthorized ActorCisco Catalyst SD-WAN ManagerPatch soon0.32
CVE-2026-20245Improper Encoding or Escaping of OutputCisco Catalyst SD-WAN ManagerPatch soon0.25
CVE-2026-20128Storing Passwords in a Recoverable FormatCisco Catalyst SD-WAN ManagerPatch soon0.07

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