CVE-2026-57031

Summary of CVE-2026-57031 (Junos OS MX Series): A vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on MX Series devices allows adjacent subscribers configured on static interfaces to bypass ingress firewall filters, disabling both protocol-level and upstream bandwi...

CVE-2026-57030

CVE-2026-57030 describes a race condition in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series. The vulnerability occurs during flow timeout handling in stateful traffic processing: a race when setting a flow’s timeout can cause the value to be set to an abnormally hig...

CVE-2026-57029

A Missing Synchronization vulnerability in the flow collector handler of Juniper Networks Junos OS Evolved on QFX Series allows an adjacent, unauthenticated attacker to cause a Denial-of-Service DoS. When the reachability of an sFlow collector changes, the corresponding next-hop entry is...

CVE-2026-57029

CVE-2026-57029 describes a missing synchronization vulnerability in the flow collector handler of Junos OS Evolved on QFX Series. When the reachability of an sFlow collector changes, updating the next-hop entry can race with the sFlow thread accessing the same data, causing the evo-pfemand proces...

CVE-2026-57029 Junos OS Evolved: QFX Series: When sFlow collector reachability changes evo-pfemand process can crash

A Missing Synchronization vulnerability in the flow collector handler of Juniper Networks Junos OS Evolved on QFX Series allows an adjacent, unauthenticated attacker to cause a Denial-of-Service DoS. When the reachability of an sFlow collector changes, the corresponding next-hop entry is...

CVE-2026-57028 Junos OS Evolved: A port which has been inadvertently exposed can be reached by an attacker

An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause license exhaustion. Due to an incorrect initialization, a process which should only be able to communicate internall...

CVE-2026-57028

An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause license exhaustion. Due to an incorrect initialization, a process which should only be able to communicate internall...

CVE-2026-57028 Junos OS Evolved: A port which has been inadvertently exposed can be reached by an attacker

An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause license exhaustion. Due to an incorrect initialization, a process which should only be able to communicate internall...

CVE-2026-57027 Junos OS: EX4100 Series, EX4400: With sFlow configured in a VC scenario multicast traffic leads to an FPC crash

A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on specific EX Series devices allows an unauthenticated adjacent attacker to cause a Denial-of-Service DoS.When sFlow is configured in a Virtual Chassis VC scenario...

CVE-2026-57026 Junos OS: MX Series with SPC3, SRX Series: Processing of a specifically malformed SIP invite causes a flowd crash

An Improper Validation of Syntactic Correctness of Input vulnerability in the SIP plugin of Juniper Networks Junos OS on MX Series with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS.If the SIP ALG is enabled on an affected device, the...

CVE-2026-57025

CVE-2026-57025 affects Juniper Junos OS and Junos OS Evolved. The vulnerability is a Return of Pointer Value Outside of Expected Range in the fileio library that enables a local, low-privileged attacker to trigger a Denial-of-Service. On EX Series, QFX Series and MX Series, issuing a specific 'sh...

CVE-2026-57025 Junos OS and Junos OS Evolved: EX Series, QFX Series, MX Series: A specific 'show l2-learning/ethernet-switching' 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...

CVE-2026-57025

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...

CVE-2026-57024

The CVE-2026-57024 entry concerns Juniper Junos OS on MX-SPC3 and SRX Series devices, where the iked process can crash under a high volume of VPN negotiation failures. According to the connected documents, repeated VPN failures cause a peer index rollover, leading to new peers being assigned indi...

CVE-2026-57024

A Use of Multiple Resources with Duplicate Identifier vulnerability in the IKE daemon iked of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On an MX with SPC3 and SRX devices configured for VPN service,...

CVE-2026-57024 Junos OS: MX with SPC3, SRX Series: Repeated VPN negotiation failures will eventually cause iked to crash continuously

A Use of Multiple Resources with Duplicate Identifier vulnerability in the IKE daemon iked of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On an MX with SPC3 and SRX devices configured for VPN service,...

CVE-2026-57023

An Improper Validation of Specified Quantity in Input vulnerability in the TCP proxy plugin of Juniper Networks Junos OS on MX Series with SPC3, and SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial of Service DoS. When TCP proxy is engaged in a flow session,...

CVE-2026-57022 Junos OS: MX Series with SPC3, SRX Series: Specific packet in response to a TCP connection establishment by the affected device can crash the PFE

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. When an affected device initiates a TCP...

CVE-2026-57021

An Out-of-bounds Write vulnerability in the http-gatekeeper http-gk of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. If an SRX Series device is configured for remote-access VPN with pre-logon compliance check, a...

CVE-2026-57021 Junos OS: SRX Series: If VPN compliance-check is configured an attacker can cause http-gk process crash

An Out-of-bounds Write vulnerability in the http-gatekeeper http-gk of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. If an SRX Series device is configured for remote-access VPN with pre-logon compliance check, a...