CVE-2026-21906

Опубликовано: 15 янв. 2026

Источник: nvd

CVSS3: 7.5

EPSS Низкий

Описание

When PowerMode IPsec (PMI) and GRE performance acceleration are enabled and the device receives a specific ICMP packet, a crash occurs in the SRX PFE, resulting in traffic loss. PMI is enabled by default, and GRE performance acceleration can be enabled by running the configuration command shown below. PMI is a mode of operation that provides IPsec performance improvements using Vector Packet Processing.

Note that PMI with GRE performance acceleration is only supported on specific SRX platforms. This issue affects Junos OS on the SRX Series:

all versions before 21.4R3-S12,
from 22.4 before 22.4R3-S8,
from 23.2 before 23.2R2-S5,
from 23.4 before 23.4R2-S5,
from 24.2 before

Ссылки

https://kb.juniper.net/JSA106005
Vendor Advisory
https://supportportal.juniper.net/JSA106005
Vendor Advisory
https://www.juniper.net/documentation/us/en/software/junos/vpn-ipsec/topics/topic-map/security-powermode-ipsec-vpn.html
Technical Description

Уязвимые конфигурации

Конфигурация 1

Одновременно

Одно из

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

Версия до 21.4 (исключая)

cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r2-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s10:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s11:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s3:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s4:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s5:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s6:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s7:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s8:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s9:*:*:*:*:*:*

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: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: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: 16%

0.00052

Низкий

7.5 High

CVSS3

Дефекты

CWE-755

Связанные уязвимости

GHSA-942f-w2gm-p948

CVSS3: 7.5

github

23 дня назад

An Improper Handling of Exceptional Conditions vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker sending a specific ICMP packet through a GRE tunnel to cause the PFE to crash and restart. When PowerMode IPsec (PMI) and GRE performance acceleration are enabled and the device receives a specific ICMP packet, a crash occurs in the SRX PFE, resulting in traffic loss. PMI is enabled by default, and GRE performance acceleration can be enabled by running the configuration command shown below. PMI is a mode of operation that provides IPsec performance improvements using Vector Packet Processing. Note that PMI with GRE performance acceleration is only supported on specific SRX platforms. This issue affects Junos OS on the SRX Series: * all versions before 21.4R3-S12, * from 22.4 before 22.4R3-S8, * from 23.2 before 23.2R2-S5, * from 23.4 before 23.4R2-S5, * from 24.2 bef...

EPSS

Процентиль: 16%

0.00052

Низкий

7.5 High

CVSS3

Дефекты

CWE-755