Improper handling of exceptional conditions in Junos OS - CVE-2025-21596
Published: January 9, 2025
Vulnerability identifier: #VU102488
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-21596
CWE-ID: CWE-755
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of exceptional conditions error in the command-line processing. A local user can cause the chassis daemon (chassisd) to crash and restart, resulting in a temporary Denial of Service (DoS).
Affected software
Junos OS
How to mitigate CVE-2025-21596
Install updates from vendor's website.
Junos OS - addressed in versions 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S4, 23.2R2-S3, 23.4R2-S1, 24.2R1