Null pointer dereference in Juniper Junos OS - CVE-2025-30645

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Main Vulnerability Database Vulnerabilities #VU107439

Null pointer dereference in Juniper Junos OS - CVE-2025-30645

Published: April 14, 2025


Vulnerability identifier: #VU107439
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-30645
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Juniper Junos OS

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to null pointer dereference error in the flow daemon (flowd). A remote non-authenticated attacker can be sent out of a Dual-Stack (DS) Lite tunnel to crash the flowd process, resulting in a Denial of Service (DoS).


How to mitigate CVE-2025-30645

Install updates from vendor's website.

Sources