CVE-2025-27829 — HIGH (7.3)

Vulnerability 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 Score

7.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Related Weaknesses (CWE)

CWE-400

References

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

FAQ

What is CVE-2025-27829?

CVE-2025-27829 is a vulnerability with a CVSS score of 7.3 (HIGH). 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 o...

How severe is CVE-2025-27829?

CVE-2025-27829 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-27829?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.