7.1

CVE-2025-52947

Junos OS: ACX Series: When 'hot-standby' mode is configured for an L2 circuit, interface flap causes the FEB to crash

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Juniper ≫ Junos Version < 21.2
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update -
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r1
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r1-s1
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r1-s2
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r2
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r2-s1
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r2-s2
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r3
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r3-s1
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r3-s2
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r3-s3
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r3-s4
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r3-s5
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r3-s6
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r3-s7
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
Juniper ≫ Junos Version 21.2 Update r3-s8
   Juniper ≫ Acx1000 Version -
   Juniper ≫ Acx1100 Version -
   Juniper ≫ Acx2000 Version -
   Juniper ≫ Acx2100 Version -
   Juniper ≫ Acx2200 Version -
   Juniper ≫ Acx4000 Version -
   Juniper ≫ Acx5048 Version -
   Juniper ≫ Acx5096 Version -
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.26% 0.172
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Juniper 7.1 0 0
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
Juniper 6.5 2.8 3.6
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-755 Improper Handling of Exceptional Conditions

The product does not handle or incorrectly handles an exceptional condition.

https://supportportal.juniper.net/JSA100051
Vendor Advisory