CVE-2026-21914

Опубликовано: 15 янв. 2026

Источник: nvd

CVSS3: 7.5

EPSS Низкий

Описание

An Improper Locking vulnerability in the GTP plugin of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (Dos).

If an SRX Series device receives a specifically malformed GPRS Tunnelling Protocol (GTP) Modify Bearer Request message, a lock is acquired and never released. This results in other threads not being able to acquire a lock themselves, causing a watchdog timeout leading to FPC crash and restart. This issue leads to a complete traffic outage until the device has automatically recovered.

This issue affects Junos OS on SRX Series:

all versions before 22.4R3-S8,
23.2 versions before 23.2R2-S5,
23.4 versions before 23.4R2-S6,
24.2 versions before 24.2R2-S3,
24.4 versions before 24.4R2-S2,
25.2 versions before 25.2R1-S1, 25.2R2.

Ссылки

https://kb.juniper.net/JSA106015
Vendor Advisory
https://supportportal.juniper.net/JSA106015
Vendor Advisory

Уязвимые конфигурации

Конфигурация 1

Одновременно

Одно из

cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*

Версия до 22.4 (исключая)

cpe:2.3:o:juniper:junos:22.4:-:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r2-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r3:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r3-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r3-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r3-s3:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r3-s4:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r3-s5:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r3-s6:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.4:r3-s7:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.2:r2-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.2:r2-s3:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.2:r2-s4:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.4:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.4:r2-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.4:r2-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.4:r2-s3:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.4:r2-s4:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:23.4:r2-s5:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.2:-:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.2:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.2:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.2:r1-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.2:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.2:r2-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.2:r2-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.4:-:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.4:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.4:r1-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.4:r1-s3:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.4:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:24.4:r2-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:25.2:-:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:25.2:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:25.2:r2:*:*:*:*:*:*

Одно из

cpe:2.3:h:juniper:srx1500:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx1600:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx2300:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx300:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx320:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx340:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx345:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx380:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx4100:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx4120:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx4200:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx4300:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx4600:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx4700:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx5400:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx5600:-:*:*:*:*:*:*:*

cpe:2.3:h:juniper:srx5800:-:*:*:*:*:*:*:*

EPSS

Процентиль: 13%

0.00044

Низкий

7.5 High

CVSS3

Дефекты

CWE-667

Связанные уязвимости

GHSA-w5fv-m4rq-pgg2

CVSS3: 7.5

github

21 день назад

An Improper Locking vulnerability in the GTP plugin of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (Dos). If an SRX Series device receives a specifically malformed GPRS Tunnelling Protocol (GTP) Modify Bearer Request message, a lock is acquired and never released. This results in other threads not being able to acquire a lock themselves, causing a watchdog timeout leading to FPC crash and restart. This issue leads to a complete traffic outage until the device has automatically recovered. This issue affects Junos OS on SRX Series: * all versions before 22.4R3-S8, * 23.2 versions before 23.2R2-S5, * 23.4 versions before 23.4R2-S6, * 24.2 versions before 24.2R2-S3, * 24.4 versions before 24.4R2-S2, * 25.2 versions before 25.2R1-S1, 25.2R2.

BDU:2026-00585

CVSS3: 7.5

fstec

23 дня назад

Уязвимость операционной системы Junos OS маршрутизаторов серии SRX, связанная с некорректной блокировкой ресурсов, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 13%

0.00044

Низкий

7.5 High

CVSS3

Дефекты

CWE-667