Retrospective for 2026-07-04, compiled on 27 October 2026. The date identifies the day being analysed; source publication and revision dates are recorded below.
What this advisory changes in your environment
The starting point is CERTFR-2026-AVI-0825, published on 2026-07-02. Its scope includes Secure Endpoint Private Cloud, Secure Endpoint Connector, Catalyst Center. Reported consequences are denial of service, loss of confidentiality. These statements apply to the advisory’s scope; they do not assign every consequence to every product or CVE.
This case contains 6 version entries; CVE identifier count: 8. Track remediation by component: a successful overall update does not demonstrate that Secure Endpoint Private Cloud and Catalyst Center each received their respective fix.
Products and versions to examine
- Reference
- CERTFR-2026-AVI-0825
- Source first published
- 2026-07-02
- Latest source revision available for this day
- 2026-07-02
- Named components
- Secure Endpoint Private Cloud, Secure Endpoint Connector, Catalyst Center
- CVE identifiers
- CVE-2026-20216, CVE-2026-20243, CVE-2026-20215, CVE-2026-20213, CVE-2026-20214, CVE-2026-20217, CVE-2026-20244, CVE-2026-20191
| Component | Published condition |
|---|---|
| Secure Endpoint Private Cloud | < 4.2.8 |
| Catalyst Center | 2.3.7 : < 2.3.7.11-VA GSMU100 |
| Catalyst Center | 3.1 : < 3.1.6 GSMU200 |
For Secure Endpoint Private Cloud, the published condition is “< 4.2.8”. Compare the version actually loaded with that condition within its own release branch. A fix installed on another edition of Secure Endpoint Private Cloud does not close this case.
Mechanism and prerequisites
A confidentiality failure may expose information without changing it. Identify accessible datasets, keys and stored tokens, then investigate unusual access before deciding which credentials require rotation.
The primary record CVE-2026-20216, published by cisco, covers Cisco Secure Endpoint. The retained revision is dated 2026-07-01. Its scope is presented separately from the integrations and product groupings in CERTFR-2026-AVI-0825.
The published metric for CVE-2026-20216 is CVSS 3.1, 7.5/10. The vector below describes technical prerequisites; it does not measure attack frequency or the likelihood that your deployment is compromised.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack vector
- network
- Prior privileges
- none
- User interaction
- none
- Complexity
- low
- Weakness
- CWE-770
Choose the appropriate intervention
- Locate Secure Endpoint Private Cloud instances, running releases and service owners. Record condition < 4.2.8 in the ticket alongside reference CERTFR-2026-AVI-0825.
- Compare the installed branch with the vendor’s Secure Endpoint Private Cloud release notes. Prepare the package for that branch and a dependent-service test, retaining the pre-change state.
- After changing Secure Endpoint Private Cloud, capture the loaded version again and verify the workflow below. Any exception needs an owner, an exposure-reduction measure and an expiry date.
Verify the fix in a real workflow
Validation scenario to adapt for Secure Endpoint Private Cloud: For Secure Endpoint Private Cloud, test an authorised business flow from each zone reaching the service and confirm management restrictions. If a redundant pair exists, verify both nodes and rule persistence after failover during a planned maintenance window. This is a proposed defensive check, not a claim that testing was performed against third-party systems.
Limit of case CERTFR-2026-AVI-0825: this analysis replaces neither vendor prerequisites nor investigation of your logs. Only documented versions are reproduced; no attack date or victim is invented.
Questions specific to this case
Which condition should be checked for Secure Endpoint Private Cloud?
Advisory CERTFR-2026-AVI-0825 states: Secure Endpoint Private Cloud — < 4.2.8. Check the edition and running release; do not extend the published boundary to branches absent from the advisory.
Why not use one fix for Secure Endpoint Private Cloud and Catalyst Center?
CERTFR-2026-AVI-0825 distinguishes these components within a scope containing 6 entries. Match each branch to its own update documentation and functional check.
Which prerequisites does record CVE-2026-20216 specify?
For CVE-2026-20216, the published vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Verify those conditions on Cisco Secure Endpoint before applying them to an integration named in CERTFR-2026-AVI-0825.
Sources and related reading
- CERT-FR · CERTFR-2026-AVI-0825
- Vendor and remediation · sec.cloudapps.cisco.com
- Vendor and remediation · sec.cloudapps.cisco.com
- CVE-2026-20216 · CNA
Practical guide : Software inventory: prepare for end of support
Explore the decision addressed in this case
Complete source advisory inventory
The article table may be an extract. These lists contain every affected-system entry and CVE in the specified advisory revision. They are not an inventory of your assets and do not map every CVE to every product.
Official source · CERTFR-2026-AVI-0825
Advisory revision : · Checked on :
Affected systems · 6
Original French wording is retained to avoid ambiguous translations of version conditions.
- Secure Endpoint Private Cloud versions antérieures à 4.2.8
- Secure Endpoint Connector versions antérieures à 1.27.21 pour Mac
- Secure Endpoint Connector versions antérieures à 1.29.01 pour Linux
- Catalyst Center versions 2.3.7 antérieures à 2.3.7.11-VA GSMU100
- Secure Endpoint Connector versions antérieures à 8.6.21 pour Windows
- Catalyst Center versions 3.1 antérieures à 3.1.6 GSMU200