Improper input validation in Cisco Catalyst Sd-Wan Manager
CVE-2026-20224
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an unauthenticated, remote attacker to read arbitrary files that are stored in an affected system. The attacker does not need to have valid user credentials. This vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing an XML file. An attacker could exploit this vulnerability by sending a crafted request to an affected system. A successful exploit could allow the attacker to read arbitrary files that are stored in the affected system.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.010 (61.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Cisco Catalyst_sd-wan_manager — versions 20.12.7
- Cisco Catalyst Sd-wan Manager — versions 20.1.12, 19.2.1, 18.4.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (Vendor Advisory)
- psirt@cisco.com (Not Applicable)
Frequently asked questions
- What is CVE-2026-20224?
- CVE-2026-20224 is a high-severity vulnerability in Cisco Catalyst Sd-Wan Manager, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2026-05-14.
- How severe is CVE-2026-20224?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2026-20224 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.