An issue was discovered in Stormshield Network Security (SNS) 4.3.x before 4.3.8. The event logging of the ASQ sofbus lacbus plugin triggers the dereferencing of a NULL pointer, leading to a crash of SNS. An attacker could exploit this vulnerability via forged sofbus lacbus traffic to cause a firmware crash.
Conclusion & alert: CVE-2022-30279 is rated Moderate Risk (49.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.90%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.39% | 0.90% | +0.51% |
| 2 | 2025-07-13 | 0.54% | 0.39% | -0.15% |
| 3 | 2025-05-13 | — | 0.54% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| stormshield | stormshield_network_security | >= 4.3.3, < 4.3.8 | cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://advisories.stormshield.eu/2022-015 | Vendor Advisory |