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CVE-2026-57029

Опубликовано: 09 июл. 2026
Источник: nvd
CVSS3: 5.3
EPSS Низкий

Описание

A Missing Synchronization vulnerability in the flow collector handler of Juniper Networks Junos OS Evolved on QFX Series allows an adjacent, unauthenticated attacker to cause a Denial-of-Service (DoS).

When the reachability of an sFlow collector changes, the corresponding next-hop entry is updated. If this update occurs simultaneously with the sFlow thread accessing the next-hop data (which is outside the attackers control), it causes the evo-pfemand process to crash, impacting all traffic forwarding until the automatic process restart has completed.

This issue affects Junos OS Evolved on QFX Series:

  • all 23.2 versions, 
  • 23.4 versions before 23.4R2-S7-EVO,
  • 24.2 versions before 24.2R2-S5-EVO,
  • 24.4 versions before 24.4R2-S3-EVO,
  • 25.2 versions before 25.2R2-EVO.

Уязвимые конфигурации

Конфигурация 1

Одновременно

Одно из

cpe:2.3:o:juniper:junos_os_evolved:23.2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.2:r2-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.4:r1-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.4:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:25.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:25.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:25.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:25.2:r1-s2:*:*:*:*:*:*

Одно из

cpe:2.3:h:juniper:qfx10008:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx10016:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5110:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5120:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5130:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5140:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5200:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5210:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5220:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5230-64cd:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5240:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5241:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5250:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:qfx5700:-:*:*:*:*:*:*:*

EPSS

Процентиль: 9%
0.0019
Низкий

5.3 Medium

CVSS3

Дефекты

CWE-820

Связанные уязвимости

CVSS3: 5.3
github
2 месяца назад

A Missing Synchronization vulnerability in the flow collector handler of Juniper Networks Junos OS Evolved on QFX Series allows an adjacent, unauthenticated attacker to cause a Denial-of-Service (DoS). When the reachability of an sFlow collector changes, the corresponding next-hop entry is updated. If this update occurs simultaneously with the sFlow thread accessing the next-hop data (which is outside the attackers control), it causes the evo-pfemand process to crash, impacting all traffic forwarding until the automatic process restart has completed. This issue affects Junos OS Evolved on QFX Series: * all 23.2 versions,  * 23.4 versions before 23.4R2-S7-EVO, * 24.2 versions before 24.2R2-S5-EVO, * 24.4 versions before 24.4R2-S3-EVO, * 25.2 versions before 25.2R2-EVO.

EPSS

Процентиль: 9%
0.0019
Низкий

5.3 Medium

CVSS3

Дефекты

CWE-820