Retrospective for 2026-06-29, 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-0816, published on 2026-06-29. Its scope includes Stormshield Management Center. Reported consequences are data integrity compromise, code execution, loss of confidentiality. These statements apply to the advisory’s scope; they do not assign every consequence to every product or CVE.
This case focuses on Stormshield Management Center. Locate that edition in live installations, deployment images and actual dependencies, rather than treating every product from Stormshield as equivalent.
Products and versions to examine
- Reference
- CERTFR-2026-AVI-0816
- Source first published
- 2026-06-29
- Latest source revision available for this day
- 2026-06-29
- Named components
- Stormshield Management Center
- CVE identifiers
- CVE-2026-6637, CVE-2026-6473, CVE-2026-6638, CVE-2026-6475, CVE-2026-6477
| Component | Published condition |
|---|---|
| Stormshield Management Center | < 3.9.2 |
For Stormshield Management Center, the published condition is “< 3.9.2”. Compare the version actually loaded with that condition within its own release branch. A fix installed on another edition of Stormshield Management Center does not close this case.
Mechanism and prerequisites
Execution context matters as much as the flaw’s name. Distinguish operations available to a local user from those exposed remotely, then examine the permissions and secrets of the affected process.
The primary record CVE-2026-6637, published by PostgreSQL, covers PostgreSQL. The retained revision is dated 2026-05-15. Its scope is presented separately from the integrations and product groupings in CERTFR-2026-AVI-0816.
The published metric for CVE-2026-6637 is CVSS 3.1, 8.8/10. 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:L/UI:N/S:U/C:H/I:H/A:H
- Attack vector
- Not specified in the retained source
- Prior privileges
- Not specified in the retained source
- User interaction
- Not specified in the retained source
- Complexity
- Not specified in the retained source
- Weakness
- CWE-121, CWE-89
Choose the appropriate intervention
- Locate Stormshield Management Center instances, running releases and service owners. Record condition < 3.9.2 in the ticket alongside reference CERTFR-2026-AVI-0816.
- Compare the installed branch with the vendor’s Stormshield Management Center release notes. Prepare the package for that branch and a dependent-service test, retaining the pre-change state.
- After changing Stormshield Management Center, 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 Stormshield Management Center: For Stormshield Management Center, 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-0816: 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 Stormshield Management Center?
Advisory CERTFR-2026-AVI-0816 states: Stormshield Management Center — < 3.9.2. Check the edition and running release; do not extend the published boundary to branches absent from the advisory.
Which prerequisites does record CVE-2026-6637 specify?
For CVE-2026-6637, the published vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Verify those conditions on PostgreSQL before applying them to an integration named in CERTFR-2026-AVI-0816.
Sources and related reading
- CERT-FR · CERTFR-2026-AVI-0816
- Vendor and remediation · advisories.stormshield.eu
- CVE-2026-6637 · CNA
Practical guide : Software inventory: prepare for end of support
Explore the decision addressed in this case
- Junos OS Evolved, Junos OS: limit execution permissions
- Secure Endpoint Private Cloud: protect accessible data
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-0816
Advisory revision : · Checked on :
Affected systems · 1
Original French wording is retained to avoid ambiguous translations of version conditions.
- Stormshield Management Center versions antérieures à 3.9.2