VulnerabilityDeferred

CVE-2025-27829

That could result in a denial of the multicast routing service on the firewall.

HIGH 7.3EPSS 0.29%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An issue was discovered in Stormshield Network Security (SNS) 4.3.x before 4.3.35. If multicast streams are enabled on different interfaces, it may be possible to interrupt multicast traffic on some of these interfaces. That could result in a denial of the multicast routing service on the firewall.

CVSS 3.1: 7.3 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS: 0.29% probability · 22th percentile
CISA KEV: Not listed
Weakness: CWE-400
Source: cve@mitre.org

References

https://advisories.stormshield.eu/2025-002/

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.