An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a memory corruption that leads to a rpd crash.
When
the logical interface using a routing instance flaps continuously, specific updates are sent to the jflow/sflow modules. This results in memory corruption, leading to an rpd crash and restart.
Continued receipt of these specific updates will cause a sustained Denial of Service condition.
This issue affects Junos OS:
* All versions before 21.2R3-S9,
* All versions of 21.4,
* All versions of 22.2,
* from 22.4 before 22.4R3-S7,
* from 23.2 before 23.2R2-S3,
* from 23.4 before 23.4R2-S4,
* from 24.2 before 24.2R2.
Junos OS Evolved:
* All versions of 21.2-EVO,
* All versions of 21.4-EVO,
* All versions of 22.2-EVO,
* from 22.4 before 22.4R3-S7-EVO,
* from 23.2 before 23.2R2-S3-EVO,
* from 23.4 before 23.4R2-S4-EVO,
* from 24.2 before 24.2R2-EVO.
References
| Link | Resource |
|---|---|
| https://supportportal.juniper.net/JSA100062 | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
No history.
Information
Published : 2025-07-11 15:15
Updated : 2026-01-23 19:37
NVD link : CVE-2025-52955
Mitre link : CVE-2025-52955
CVE.ORG link : CVE-2025-52955
JSON object : View
Products Affected
juniper
- junos
- junos_os_evolved
CWE
CWE-131
Incorrect Calculation of Buffer Size