CVE-2026-57022MEDIUM· 5.9MITRENVD대응게시일: 2026. 07. 09.수정일: 2026. 07. 14.CNA: sirt@juniper.netAnalyzed

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on

위협 신호 · CVSS · EPSS · KEV

정기 패치· 높은 악용 신호 없음

CVSS

5.9medium

이론적 심각도 점수

EPSS

0.3%상위 78.6%

30일 내 악용 확률 예측

KEV

미등재

실측 악용 기록 없음

권장 대응 기한60일 이내CISA SSVC 기준

계획된 패치 주기 내 조치(60일 이내)

외부 노출· KEV 미등재 · 자동화 어려움 · 부분 영향 · 외부 노출

CVSS 벡터 · 메트릭

악용 경로

공격 벡터네트워크

공격 복잡도높음

필요 권한불필요

사용자 상호작용불필요

범위불변

영향

기밀성 영향없음

무결성 영향없음

가용성 영향높음

버전별 점수

CVSS 4.08.2HIGH· 악용성숙도 NOT_DEFINED

CVSS 3.15.9MEDIUM· 악용성 2.2· 영향도 3.6

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

약점 (CWE)

CWE-754

상세 설명

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).

When an affected device initiates a TCP connection to an attacker-controlled system that responds with a specific packet, this causes a PFE crash and restart, which affects all services until the system has automatically recovered.
This issue can happen among others in the following scenarios: ALG, SSL proxy, UTM, RTLOG, AppQoE probing, AAMW, ICAP, URL filtering.

This issue affects Junos OS on MX Series with SPC3, SRX5k Series with SPC3, SRX1600 Series, SRX2300 Series, SRX4000 Series, and vSRX Series:

all versions before 23.2R2-S4,
23.4 versions before 23.4R2-S5,
24.2 versions before 24.2R2.

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영향받는 제품·버전

juniper junos< 23.2
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper junos
other
juniper vsrx
other
juniper mx-spc3
other
juniper mx240
other
juniper mx480
other
juniper mx960
other
juniper srx1600
other
juniper srx2300
other
juniper srx4100
other
juniper srx4120
other
juniper srx4200
other
juniper srx4300
other
juniper srx4600
other
juniper srx4700
other
juniper srx5400
other
juniper srx5600
other
juniper srx5800
other
juniper srx5k-spc3
other

영향받는 구성 (CPE) 39

juniper junos< 23.2cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
juniper junos 23.2cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:*
juniper junos 23.2cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:*
juniper junos 23.2cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:*
juniper junos 23.2cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:*
juniper junos 23.2cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:*
juniper junos 23.2cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:*
juniper junos 23.2cpe:2.3:o:juniper:junos:23.2:r2-s2:*:*:*:*:*:*
juniper junos 23.2cpe:2.3:o:juniper:junos:23.2:r2-s3:*:*:*:*:*:*
juniper junos 23.4cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:*
juniper junos 23.4cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:*
juniper junos 23.4cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:*
juniper junos 23.4cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:*
juniper junos 23.4cpe:2.3:o:juniper:junos:23.4:r2:*:*:*:*:*:*
juniper junos 23.4cpe:2.3:o:juniper:junos:23.4:r2-s1:*:*:*:*:*:*
juniper junos 23.4cpe:2.3:o:juniper:junos:23.4:r2-s2:*:*:*:*:*:*
juniper junos 23.4cpe:2.3:o:juniper:junos:23.4:r2-s3:*:*:*:*:*:*
juniper junos 23.4cpe:2.3:o:juniper:junos:23.4:r2-s4:*:*:*:*:*:*
juniper junos 24.2cpe:2.3:o:juniper:junos:24.2:-:*:*:*:*:*:*
juniper junos 24.2cpe:2.3:o:juniper:junos:24.2:r1:*:*:*:*:*:*
juniper junos 24.2cpe:2.3:o:juniper:junos:24.2:r1-s1:*:*:*:*:*:*
juniper junos 24.2cpe:2.3:o:juniper:junos:24.2:r1-s2:*:*:*:*:*:*
juniper vsrxcpe:2.3:a:juniper:vsrx:-:*:*:*:*:*:*:*
juniper mx-spc3cpe:2.3:h:juniper:mx-spc3:-:*:*:*:*:*:*:*
juniper mx240cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:*
juniper mx480cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:*
juniper mx960cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:*
juniper srx1600cpe:2.3:h:juniper:srx1600:-:*:*:*:*:*:*:*
juniper srx2300cpe:2.3:h:juniper:srx2300:-:*:*:*:*:*:*:*
juniper srx4100cpe:2.3:h:juniper:srx4100:-:*:*:*:*:*:*:*
juniper srx4120cpe:2.3:h:juniper:srx4120:-:*:*:*:*:*:*:*
juniper srx4200cpe:2.3:h:juniper:srx4200:-:*:*:*:*:*:*:*
juniper srx4300cpe:2.3:h:juniper:srx4300:-:*:*:*:*:*:*:*
juniper srx4600cpe:2.3:h:juniper:srx4600:-:*:*:*:*:*:*:*
juniper srx4700cpe:2.3:h:juniper:srx4700:-:*:*:*:*:*:*:*
juniper srx5400cpe:2.3:h:juniper:srx5400:-:*:*:*:*:*:*:*
juniper srx5600cpe:2.3:h:juniper:srx5600:-:*:*:*:*:*:*:*
juniper srx5800cpe:2.3:h:juniper:srx5800:-:*:*:*:*:*:*:*
juniper srx5k-spc3cpe:2.3:h:juniper:srx5k-spc3:-:*:*:*:*:*:*:*

참고 자료 1

https://supportportal.juniper.net/JSA110082
Vendor Advisory

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