6.8

CVE-2026-57025

Junos OS and Junos OS Evolved: EX Series, QFX Series, MX Series: A specific 'show l2-learning' command causes l2ald crash

A Return of Pointer Value Outside of Expected Range vulnerability in the fileio library of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privilged attacker to cause a Denial-of-Service (DoS).

On EX Series, QFX Series and MX Series a low-privileged attacker issuing a specific 'show l2-learning' command will cause an l2ald crash which will lead to a temporary service impact for all layer 2 services until the process has automatically restarted.

This issue affects EX Series, QFX Series, MX Series:
Junos OS:


  *  all versions before 23.2R2-S7,
  *  23.4 versions before 23.4R2-S7,
  *  24.2 versions before 24.2R2,
  *  24.4 versions before 24.4R1-S2.



Junos OS Evolved:
  *  all versions before 23.2R2-S7-EVO,
  *  23.4 versions before 23.4R2-S8-EVO,
  *  24.2 versions before 24.2R2-EVO,
  *  24.4 versions before 24.4R1-S3-EVO.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerJuniper Networks
≫
Produkt Junos OS
Default Statusunaffected
Version 0
Version < 23.2R2-S7
Status affected
Version 23.4
Version < 23.4R2-S7
Status affected
Version 24.2
Version < 24.2R2
Status affected
Version 24.4
Version < 24.4R1-S2
Status affected
HerstellerJuniper Networks
≫
Produkt Junos OS Evolved
Default Statusunaffected
Version 0
Version < 23.2R2-S7-EVO
Status affected
Version 23.4
Version < 23.4R2-S8-EVO
Status affected
Version 24.2
Version < 24.2R2-EVO
Status affected
Version 24.4
Version < 24.4R1-S3-EVO
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.038
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
sirt@juniper.net 6.8 0 0
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/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:Y/R:A/V:X/RE:M/U:X
sirt@juniper.net 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-466 Return of Pointer Value Outside of Expected Range

A function can return a pointer to memory that is outside of the buffer that the pointer is expected to reference.

https://supportportal.juniper.net/JSA110085