CVE-2026-20224

HIGHCVSS 8.6/10EPSS 0.69%

Last modified

CVE-2026-20224 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. 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. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.6/10

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

EPSS Probability
0.69%

48.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoCatalyst Sd-Wan Manager< 20.9.9.1
CiscoCatalyst Sd-Wan Manager>= 20.10, < 20.12.5.4
CiscoCatalyst Sd-Wan Manager>= 20.12.6, < 20.12.6.2
CiscoCatalyst Sd-Wan Manager>= 20.13, < 20.15.4.4
CiscoCatalyst Sd-Wan Manager>= 20.15.5, < 20.15.5.2
CiscoCatalyst Sd-Wan Manager>= 20.16, < 20.18.2.2
CiscoCatalyst Sd-Wan Manager>= 26.1, < 26.1.1.1
CiscoCatalyst Sd-Wan Manager20.12.7

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is 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.
How severe is CVE-2026-20224?
CVE-2026-20224 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.
How do I fix CVE-2026-20224?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

Are you affected by CVE-2026-20224?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST