Out-of-bounds read in Junos OS and Junos OS Evolved - CVE-2025-21598
Published: January 10, 2025
Vulnerability identifier: #VU102530
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-2025-21598
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in routing protocol daemon (rpd). A remote attacker can send malformed BGP packets to the affected device, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.
Affected software
Junos OS
Junos OS Evolved
Junos OS Evolved
How to mitigate CVE-2025-21598
Install updates from vendor's website.
Junos OS - addressed in versions 21.2R3-S9, 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S5, 23.2R2-S2, 23.4R2-S1, 24.2R1-S1, 24.2R2, 24.4R1
Junos OS Evolved - addressed in versions 21.4R3-S9-EVO, 22.2R3-S5-EVO, 22.3R3-S4-EVO, 22.4R3-S5-EVO, 23.2R2-S2-EVO, 23.4R2-S1-EVO, 24.2R1-S2-EVO, 24.2R2-EVO, 24.4R1-EVO
Junos OS Evolved - addressed in versions 21.4R3-S9-EVO, 22.2R3-S5-EVO, 22.3R3-S4-EVO, 22.4R3-S5-EVO, 23.2R2-S2-EVO, 23.4R2-S1-EVO, 24.2R1-S2-EVO, 24.2R2-EVO, 24.4R1-EVO