Vulnerability-Lookup

CERTFR-2026-AVI-0214

Vulnerability from certfr_avis - Published: 2026-02-26 - Updated: 2026-02-26

Une vulnérabilité a été découverte dans Juniper Networks Junos OS Evolved. Elle permet à un attaquant de provoquer une exécution de code arbitraire à distance.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

	Vendor	Product	Description
	Juniper Networks	Junos OS Evolved	Junos OS Evolved versions antérieures à 25.4R1-S1-EVO sur PTX Series

References

Title

Publication Time

CVE-2026-21902 (GCVE-0-2026-21902)

Vulnerability from cvelistv5 – Published: 2026-02-25 16:59 – Updated: 2026-02-26 14:44

Title

Junos OS Evolved: PTX Series: A vulnerability allows a unauthenticated, network-based attacker to execute code as root

Summary

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.

Severity ?

9.8 (Critical)


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

9.3 (Critical)


                        
                          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/AU:Y/R:U/RE:M/U:Red

CWE

CWE-732 - Incorrect Permission Assignment for Critical Resource

Assigner

juniper

References

URL

Tags

	https://supportportal.juniper.net/JSA107128	vendor-advisory
	https://kb.juniper.net/JSA107128	vendor-advisory

Impacted products

	Vendor	Product	Version
	Juniper Networks	Junos OS Evolved	Affected: 25.4 , < 25.4R1-S1-EVO, 25.4R2-EVO (semver) Unaffected: 0 , < 25.4R1-EVO (semver)

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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