Review reviewCritical

CVE-2026-20223

Cisco Cisco Secure Workload, secure workload

A vulnerability in the access validation of internal REST APIs of Cisco Secure Workload could allow an unauthenticated, remote attacker to access site resources with the privileges of the Site Admin role. This vulnerability is due to insufficient validation and authentication when accessing REST API endpoints. An attacker could exploit this vulnerability if they are able to send a crafted API request to an affected endpoint. A successful exploit could allow the attacker to read sensitive information and make configuration changes across tenant boundaries with the privileges of the...

CVSS
10
EPSS
0.83%
54.2% percentile
CISA KEV
Not listed
Published
2026.05.21
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.83%
Technical severityCVSS 10

Vulnerability overview

A vulnerability in the access validation of internal REST APIs of Cisco Secure Workload could allow an unauthenticated, remote attacker to access site resources with the privileges of the Site Admin role. This vulnerability is due to insufficient validation and authentication when accessing REST API endpoints. An attacker could exploit this vulnerability if they are able to send a crafted API request to an affected endpoint. A successful exploit could allow the attacker to read sensitive information and make configuration changes across tenant boundaries with the privileges of the...

Affected product and versions

Product
Cisco Cisco Secure Workload, secure workload
Affected versions
>= 2.2.1.41, >= 3.2.1.18, >= 3.3.2.50, >= 3.4.1.28, >= 3.4.1.34, >= 2.3.1.45, >= 2.3.1.41, >= 3.3.2.28, >= 3.1.1.59, >= 2.0.2.20, >= 2.1.1.33, >= 2.1.1.29, >= 3.2.1.28, >= 3.4.1.35, >= 3.1.1.65, >= 3.1.1.67, >= 2.0.1.34, >= 2.3.1.49, >= 2.2.1.39, >= 3.4.1.19
Fixed versions
3.10.8.3, 4.0.3.17

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Cisco Cisco Secure Workload, secure workload and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CWE
CWE-306