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CVE-2025-52947

nvd nist
Published: Jul 11, 2025Modified: Jun 17, 2026

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7.1
Vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:M/U:Green
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CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:M/U:GreenShow less
Source: sirt@juniper.net (Secondary)

Description

An Improper Handling of Exceptional Conditions vulnerability in route processing of Juniper Networks Junos OS on specific end-of-life (EOL) ACX Series platforms allows an attacker to crash the Forwarding Engine Board (FEB) by flapping an interface, leading to a Denial of Service (DoS). On ACX1000, ACX1100, ACX2000, ACX2100, ACX2200, ACX4000, ACX5048, and ACX5096 devices, FEB0 will crash when the primary path port of the L2 circuit IGP (Interior Gateway Protocol) on the local device goes down. This issue is seen only when 'hot-standby' mode is configured for the L2 circuit. This issue affects Junos OS on ACX1000, ACX1100, ACX2000, ACX2100, ACX2200, ACX4000, ACX5048, and ACX5096:  * all versions before 21.2R3-S9.

Affected (17)

Products: Juniper: Junos
1 product
Junos
Configuration A
17 vulnerable · 8 platform
Vulnerable SoftwareAffected Versions
Juniper
Before 21.2
Version 21.2
Version 21.2 r1-s1
Version 21.2 r1-s2
Version 21.2 r1
Version 21.2 r2-s1
Version 21.2 r2-s2
Version 21.2 r2
Version 21.2 r3-s1
Version 21.2 r3-s2
Version 21.2 r3-s3
Version 21.2 r3-s4
Version 21.2 r3-s5
Version 21.2 r3-s6
Version 21.2 r3-s7
Version 21.2 r3-s8
Version 21.2 r3
Running on/withPlatform Versions
Juniper
Acx1000
All versions
Juniper
Acx1100
All versions
Juniper
Acx2000
All versions
Juniper
Acx2100
All versions
Juniper
Acx2200
All versions
Juniper
Acx4000
All versions
Juniper
Acx5048
All versions
Juniper
Acx5096
All versions

References (1)

Source: sirt@juniper.net
Vendor Advisory

Timeline

No history available yet.