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CVE-2026-20224

38
FAUCET Score

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.

First published: May 14, 2026Last modified: May 14, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 20.9.9.1CPE matchmatch criteria
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
>= 20.10, < 20.12.5.4CPE matchmatch criteria
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
>= 20.12.6, < 20.12.6.2CPE matchmatch criteria
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
>= 20.13, < 20.15.4.4CPE matchmatch criteria
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
>= 20.15.5, < 20.15.5.2CPE matchmatch criteria
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.04%
Probability of exploitation in next 30 days
EPSS Percentile
60.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0104 is in the 37th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-mltvnps2-JxpWm7R
Vendor Advisory
sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa-EHchtZk
Not Applicable