Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Cisco | Cisco Catalyst SD-WAN Manager | 20.1.12, 19.2.1, 18.4.4, 18.4.5, 20.1.1.1, 20.1.1, 19.3.0, 19.2.2, 19.2.099, 18.3.6, 18.3.7, 19.2.0, 18.3.8, 19.0.0, 19.1.0, 18.4.302, 18.4.303, 19.2.097, 19.2.098, 17.2.10, 18.3.6.1, 19.0.1a, 18.2.0, 18.4.3, 18.4.1, 17.2.8, 18.3.3.1, 18.4.0, 18.3.1, 17.2.6, 17.2.9, 18.3.4, 17.2.5, 18.3.1.1, 18.3.5… | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
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fevar54/CVE-2026-20224---XXE-Injection-en-Cisco-Catalyst-SD-WAN-Manager ★ 0 · May 15, 2026
PoC de CVE-2026-20224: inyeccion XXE para lectura de archivos en Cisco Catalyst SD-WAN Manager (no autenticado).
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- NCSC-2026-0157 Kwetsbaarheden verholpen in Cisco Catalyst SD-WAN Controller en Manager NCSC-NL (Netherlands) · May 15, 2026
- WID-SEC-2026-1540 Cisco Catalyst SD-WAN Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 14, 2026