Improper Signature Verification of Firmware Update Files (Stormshield Stormshield Network Security)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.17 % · percentile 6 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- airbus
- NVD status
- Deferred
Description
A logic error exists in the signature verification routine resulting in acceptance of unauthenticated update and license files.It is necessary to use only the MyStormshield servers to retrieve update files or licenses, or to use automatic verification via SNS.
Weaknesses (CWE)
- CWE-287 — Improper Authentication
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | airbus |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD · cert@airbus.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-104828
- GCVE · GCVE-0-2026-111090
CERT-FR advisories
- CERTFR-2026-AVI-1339 — Multiples vulnérabilités dans Stormshield Network Security · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Stormshield · Stormshield Network Security | affected 4.3.0 ≤ 4.3.44 ; affected 4.8.0 ≤ 4.8.19 ; affected 5.0.0 ≤ 5.0.9 ; affected 5.1.0 ≤ 5.1.3 ; unaffected 4.8.20 LTSB ; unaffected 5.0.10 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |