CVE-2025-30657

published 2025-04-09

CVE-2025-30657: An Improper Encoding or Escaping of Output vulnerability in the Sampling Route Record Daemon (SRRD) of Juniper Networks Junos OS allows an unauthenticated…

medium 6.9 CVSS 4.0

AV N AC L AT N PR N UI N VC N VI N VA L SC N SI N SA N E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU Y R A V X RE M U X

An Improper Encoding or Escaping of Output vulnerability in the Sampling Route Record Daemon (SRRD) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).

When a device configured for flow-monitoring receives a specific BGP update message, it is correctly processed internally by the routing protocol daemon (rpd), but when it's sent to SRRD it's encoded incorrectly which leads to a crash and momentary interruption of jflow processing until it automatically restarts. This issue does not affect traffic forwarding itself.
This issue affects Junos OS:

* All versions before 21.2R3-S9,
* 21.4 versions before 21.4R3-S10,
* 22.2 versions before 22.2R3-S6,
* 22.4 versions before 22.4R3,
* 23.2 versions before 23.2R1-S2, 23.2R2.

This issue does not affected Junos OS Evolved.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
juniper	junos	< 21.2	21.2
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos_os	—	—
juniper_networks	junos_os	< 21.2R3-S9	21.2R3-S9
juniper_networks	junos_os	>= 21.4 < 21.4R3-S10	21.4R3-S10
juniper_networks	junos_os	>= 22.2 < 22.2R3-S6	22.2R3-S6
juniper_networks	junos_os	>= 22.4 < 22.4R3	22.4R3
juniper_networks	junos_os	>= 23.2 < 23.2R1-S2, 23.2R2	23.2R1-S2, 23.2R2

CWE-116