Vulnerabilities found in Juniper Networks’ Junos OS and Junos OS Evolved

Juniper has identified several vulnerabilities in Junos OS and Junos OS Evolved, specifically related to devices in the MX Series, PTX Series, QFX Series, EX Series, SRX Series, and QFX10000 Series. These vulnerabilities affect various components of Junos OS and Junos OS Evolved, including the...

CVE-2026-33794

An Improper Check for Unusual or Exceptional Conditions vulnerability in the advanced forwarding toolkit evo-aftmand of Juniper Networks Junos OS Evolved on PTX Series allows an unauthenticated network-based attacker generating continuous routing updates, resulting in unilist ECMP routes, to cras...

CVE-2026-33794 Junos OS Evolved: PTX Series: Receipt of repeated ECMP routing updates results in PFE crash

An Improper Check for Unusual or Exceptional Conditions vulnerability in the advanced forwarding toolkit evo-aftmand of Juniper Networks Junos OS Evolved on PTX Series allows an unauthenticated network-based attacker generating continuous routing updates, resulting in unilist ECMP routes, to cras...

CVE-2026-33794

CVE-2026-33794 affects Juniper Networks Junos OS Evolved on PTX Series. An improper check in evo-aftmand can be triggered by an unauthenticated network-based attacker sending continuous routing updates with unilist ECMP routes, causing internal state corruption and a crash of the evo-aftmand proc...

EUVD-2026-42699

An Improper Check for Unusual or Exceptional Conditions vulnerability in the advanced forwarding toolkit evo-aftmand of Juniper Networks Junos OS Evolved on PTX Series allows an unauthenticated network-based attacker generating continuous routing updates, resulting in unilist ECMP routes, to cras...

PT-2026-56926

Name of the Vulnerable Software and Affected Versions Junos OS Evolved on PTX versions 24.4R2-EVO through 24.4R2-S2-EVO Junos OS Evolved on PTX versions 25.2 through 25.2R1-EVO Description An improper check for unusual or exceptional conditions in the advanced forwarding toolkit evo-aftmand allow...

Juniper Junos OS Vulnerability (JSA110073)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA110073 advisory. - An Improper Check for Unusual or Exceptional Conditions vulnerability in the advanced forwarding toolkit evo-aftmand of Juniper Networks Junos OS Evolved on PTX Series...

CVE-2026-33788

A Missing Authentication for Critical Function vulnerability in the Flexible PIC Concentrators FPCs of Juniper Networks Junos OS Evolved on PTX Series allows a local, authenticated attacker with low privileges to gain direct access to FPCs installed in the device. A local user with low privileges...

CVE-2026-33783

A Function Call With Incorrect Argument Type vulnerability in the sensor interface of Juniper Networks Junos OS Evolved on PTX Series allows a network-based, authenticated attacker with low privileges to cause a complete Denial of Service DoS. If colored SRTE policy tunnels are provisioned via...

EUVD-2026-21093

A Missing Authentication for Critical Function vulnerability in the Flexible PIC Concentrators FPCs of Juniper Networks Junos OS Evolved on PTX Series allows a local, authenticated attacker with low privileges to gain direct access to FPCs installed in the device. A local user with low privileges...

CVE-2026-33788

A Missing Authentication for Critical Function vulnerability in the Flexible PIC Concentrators FPCs of Juniper Networks Junos OS Evolved on PTX Series allows a local, authenticated attacker with low privileges to gain direct access to FPCs installed in the device. A local user with low privileges...

CVE-2026-33783

A Function Call With Incorrect Argument Type vulnerability in the sensor interface of Juniper Networks Junos OS Evolved on PTX Series allows a network-based, authenticated attacker with low privileges to cause a complete Denial of Service DoS. If colored SRTE policy tunnels are provisioned via...

CVE-2025-59969

A Buffer Copy without Checking Size of Input 'Classic Buffer Overflow' vulnerability in the advanced forwarding toolkit evo-aftmand/evo-pfemand of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service DoS.An...

CVE-2026-33783 Junos OS Evolved: PTX Series: If SRTE tunnels provisioned via PCEP are present and specific gRPC queries are received evo-aftmand crashes

A Function Call With Incorrect Argument Type vulnerability in the sensor interface of Juniper Networks Junos OS Evolved on PTX Series allows a network-based, authenticated attacker with low privileges to cause a complete Denial of Service DoS. If colored SRTE policy tunnels are provisioned via...

CVE-2026-33783

A Function Call With Incorrect Argument Type vulnerability in the sensor interface of Juniper Networks Junos OS Evolved on PTX Series allows a network-based, authenticated attacker with low privileges to cause a complete Denial of Service DoS. If colored SRTE policy tunnels are provisioned via...

CVE-2026-33783

Junos OS Evolved on PTX Series is affected when SRTE policy tunnels are provisioned via PCEP and gRPC is used to monitor traffic; evo-aftmand crashes and requires manual restart, causing persistent DoS. The issue occurs only if the Originator ASN field in PCEP exceeds 65,535 (32-bit ASN). Affecte...

CVE-2026-33788

A Missing Authentication for Critical Function vulnerability in the Flexible PIC Concentrators FPCs of Juniper Networks Junos OS Evolved on PTX Series allows a local, authenticated attacker with low privileges to gain direct access to FPCs installed in the device. A local user with low privileges...

CVE-2026-33788 Junos OS Evolved: Local, authenticated attacker can gain privileged access to FPCs

A Missing Authentication for Critical Function vulnerability in the Flexible PIC Concentrators FPCs of Juniper Networks Junos OS Evolved on PTX Series allows a local, authenticated attacker with low privileges to gain direct access to FPCs installed in the device. A local user with low privileges...

CVE-2026-33788 Junos OS Evolved: Local, authenticated attacker can gain privileged access to FPCs

A Missing Authentication for Critical Function vulnerability in the Flexible PIC Concentrators FPCs of Juniper Networks Junos OS Evolved on PTX Series allows a local, authenticated attacker with low privileges to gain direct access to FPCs installed in the device. A local user with low privileges...

CVE-2026-33788

CVE-2026-33788 affects Juniper Networks Junos OS Evolved on PTX Series (PTX10004/PTX10008/PTX100016 with JNP10K-LC1201/1202). The issue is a Missing Authentication for Critical Function in Flexible PIC Concentrators (FPCs) that allows a local, authenticated, low-privilege user to gain direct acce...