Junos OS Evolved: PTX Series: A vulnerability allows a unauthenticated, network-based attacker to execute code as root
Juniper Networks · Junos OS Evolved
A critical-resource permission flaw in the On-Box Anomaly detection framework of Juniper Networks Junos OS Evolved on PTX Series routers, which is meant to be reachable only by internal processes over the internal routing instance but is exposed on an external port and enabled by default. An unauthenticated attacker with network access can reach the service and execute code as root, gaining full control of the device, with no authentication or user interaction required and no special configuration needed.
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.
- Exploited
- Yes, in VulnCheck KEV
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited 17 days after disclosure. Public exploit code (PoC-in-GitHub) appeared 3 days after disclosure.
- Disclosedday 0
- Public exploit codePoC-in-GitHub+3 days
- First seen exploitedVulnCheck KEV evidence+17 days
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
What security researchers reported
Not named in any threat report yetAlso mentioned in 9 community threat pulses (AlienVault OTX)
Weaker evidencePulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.
- CVE Research 202611 Mar 2026
- Known_Cve | Mar 6, 2026 | Part 1/25 Mar 2026
- Known_Cve | Mar 5, 2026 | Part 1/24 Mar 2026
- Known_Cve | Mar 4, 2026 | Part 1/23 Mar 2026
- Known_Cve | Mar 3, 2026 | Part 1/22 Mar 2026
- Known_Cve | Mar 2, 2026 | Part 1/22 Mar 2026
- 3 more on OTX