9.8

CVE-2026-21902

Medienbericht
An Incorrect Permission Assignment for Critical Resource vulnerability in the On-Box Anomaly detection framework of Juniper Networks Junos OS Evolved on PTX Series allows an unauthenticated, network-based attacker to execute code as root.

The On-Box Anomaly detection framework should only be reachable by other internal processes over the internal routing instance, but not over an externally exposed port. With the ability to access and manipulate the service to execute code as root a remote attacker can take complete control of the device.
Please note that this service is enabled by default as no specific configuration is required.

This issue affects Junos OS Evolved on PTX Series:



  *  25.4 versions before 25.4R1-S1-EVO, 25.4R2-EVO.




This issue does not affect Junos OS Evolved versions before 25.4R1-EVO.

This issue does not affect Junos OS.
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HerstellerJuniper Networks
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Produkt Junos OS Evolved
Default Statusunaffected
Version < 25.4R1-S1-EVO, 25.4R2-EVO
Version 25.4
Status affected
Version < 25.4R1-EVO
Version 0
Status unaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.29% 0.516
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
sirt@juniper.net 9.3 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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:U/V:X/RE:M/U:Red
sirt@juniper.net 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-732 Incorrect Permission Assignment for Critical Resource

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.