CVE-2025-52955

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-52955
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.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://supportportal.juniper.net/JSA100062
Configurations

No configuration.

History

20 Aug 2025, 19:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 4.1 		v2 : unknown
v3 : 6.5

08 Aug 2025, 17:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 6.5 		v2 : unknown
v3 : 4.1

14 Jul 2025, 20:15

Type Values Removed Values Added
Summary
  • (es) Una vulnerabilidad de cálculo incorrecto del tamaño del búfer en el daemon del protocolo de enrutamiento (rpd) de Juniper Networks Junos OS permite que un atacante adyacente no autenticado cause una corrupción de memoria que provoca un bloqueo de rpd. Cuando la interfaz lógica que utiliza una instancia de enrutamiento presenta fluctuaciones continuas, se envían actualizaciones específicas a los módulos jflow/sflow. Esto provoca una corrupción de memoria, lo que provoca un bloqueo y reinicio de rpd. La recepción continua de estas actualizaciones específicas provocará una denegación de servicio (DPS) sostenida. Este problema afecta a Junos OS: * Todas las versiones anteriores a 21.2R3-S9, * Todas las versiones de 21.4, * Todas las versiones de 22.2, * De 22.4 a 22.4R3-S7, * De 23.2 a 23.2R2-S3, * De 23.4 a 23.4R2-S4, * De 24.2 a 24.2R2.
Summary (en) An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS 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. (en) 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.

11 Jul 2025, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-07-11 15:15

Updated : 2025-08-20 19:15

NVD link : CVE-2025-52955

Mitre link : CVE-2025-52955

CVE.ORG link : CVE-2025-52955

JSON object : View

Products Affected

No product.

CWE
CWE-131

Incorrect Calculation of Buffer Size