Null pointer dereference in Junos OS - CVE-2025-30645
Published: April 14, 2025
Vulnerability identifier: #VU107439
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2025-30645
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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).
Affected software
Junos OS
How to mitigate CVE-2025-30645
Install updates from vendor's website.
Junos OS - addressed in versions 21.2R3-S9, 21.4R3-S9, 22.2R3-S5, 22.4R3-S6, 23.2R2-S3, 23.4R2, 24.2R1