CVE-2025-30657 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Reference

https://supportportal.juniper.net/JSA96467

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

LOW

Base Severity

5.3