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CVE-2026-101951

Junos OS and Junos OS Evolved: A BGP peer causes an rpd crash if a malformed MCAST-TREE NLRI is received and readvertised

An Improper Validation of Consistency within Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-adjacent configured BGP peer to cause a denial of service by sending a specifically malformed BGP MCAST-TREE update and this NLRI is then attempted to be readvertised.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
CVE-2026-102045

Junos OS Evolved: An crafted LACP frame causes lacpd to crash when LACP is enabled

An Out-of-bounds Write Out-of-bounds Write vulnerability in lacpd of Juniper Networks Junos OS Evolved allows a Layer-2-adjacent attacker to cause a denial of service via a crafted frame received on an LACP-enabled aggregated-Ethernet member port.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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CVE-2026-102046

Junos OS: MX Series: An attacker causes a Routing Engine denial of service when SCTP service is used

A Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in netsctp.ko of Juniper Networks Junos OS on MX Series allows an unauthenticated network attacker to cause a denial of service via crafted SCTP network traffic.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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CVE-2026-102047

Junos OS and Junos OS Evolved: An attacker causes l2cpd denial of service when MVRP is used

An Improper Validation of Consistency within Input vulnerability in the l2cpd process of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated Layer 2 attacker to cause a denial of service in associated Layer 2 control protocols via a crafted MVRP Ethernet frame sent to an MVRP-enabled interface.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
CVE-2026-102048

Junos OS: An attacker causes l2cpd crash when FNP is used with VLAN-VPLS encapsulation enabled

An Allocation of Resources Without Limits or Throttling vulnerability in the l2cpd process of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a denial of service and l2cpd restart via FNP-enabled Layer 2 interfaces. The issue is triggered when the FNP feature is enabled on a VPLS routing instance with VLAN-VPLS encapsulation enabled. This issue affects all platforms except the PTX Series and SRX Series.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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CVE-2026-102049

Junos OS and Junos OS Evolved: An attacker causes l2cpd crash or root code execution when Unified Access Policy is enabled

A Stack-based Buffer Overflow vulnerability in the l2cpd process of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a denial of service or execute arbitrary code with root privileges via LLDP traffic received on an interface with Unified Access Policy enabled.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
CVE-2026-102050

Junos OS and Junos OS Evolved: An adjacent attacker causes Layer 2 control-plane denial of service when LLDP is enabled

A Stack-based Buffer Overflow vulnerability in the l2cpd daemon of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service in Layer 2 control-plane processing via LLDP packets received on an interface configured for LLDP. Repeated triggering may disrupt LLDP and other Layer 2 control protocols across the device.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
CVE-2026-102051

Junos OS and Junos OS Evolved: An attacker causes l2cpd memory exhaustion when LLDP fast receive processing is enabled

An Improper Release of Memory Before Removing Last Reference vulnerability in the l2cpd process of Juniper Networks Junos OS and Junos OS Evolved platforms allows an adjacent unauthenticated attacker to cause l2cpd memory exhaustion and Layer 2 control-plane disruption via LLDP traffic when fast receive processing is enabled.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
CVE-2026-102052

Junos OS and Junos OS Evolved: An attacker causes jdhcpd to crash when the DHCPv4 local-client feature is used

A Stack-based Buffer Overflow vulnerability in the jdhcpd process of Juniper Networks Junos OS and Junos OS Evolved platforms allows an adjacent unauthenticated attacker to cause denial of service or execute arbitrary code with root privileges via a malformed DHCPv4 server response when the DHCPv4 local-client feature is used.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
CVE-2026-102053

Junos OS and Junos OS Evolved: An EVPN-VXLAN memory leak causes denial of service when active-active multihoming is used

An Improper Release of Memory Before Removing Last Reference vulnerability in the l2ald process of Juniper Networks Junos OS and Junos OS Evolved on QFX5K-family platforms allows a configured EVPN peer to cause a denial of service through memory exhaustion via EVPN-VXLAN active-active multihoming route processing.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
CVE-2026-102054

Junos OS and Junos OS Evolved: Insufficient validation of VXLAN overlay ping causes information disclosure when EVPN-VXLAN is configured

An Improper Handling of Length Parameter Inconsistency vulnerability in L2ALM of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to obtain stale PFE packet memory via VXLAN overlay-ping traffic sent to a local VTEP.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
CVE-2026-102055

Junos OS and Junos OS Evolved: MX Series, PTX Series: An attacker causes remote code execution and denial of service when enhanced CFM is enabled

A Stack-based Buffer Overflow vulnerability in the cfmd process of Juniper Networks Junos OS on MX Series and Junos OS Evolved on PTX Series platforms allows an unauthenticated adjacent-network attacker to execute arbitrary code as root or cause denial of service via a specific CFM Message sent to a configured down-MEP with enhanced CFM mode enabled.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
CVE-2026-102056

Junos OS and Junos OS Evolved: An attacker causes denial of service and information disclosure when Ethernet CFM is enabled

An Out-of-bounds Read vulnerability in the cfmd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent-network attacker to crash the daemon and disclose limited process memory via a specific CFM Message sent to a configured interface.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
CVE-2026-101949

Junos OS and Junos OS Evolved: In a scenario with VPN-flowspec and BMP monitoring a specific BGP update causes an rpd crash

A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated remote BGP neighbor to cause a denial of service via a VPN-flowspec BGP update if it is readvertised and BMP post-policy RIB-out monitoring is configured.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
CVE-2026-102063

Junos OS: MX Series: An unauthenticated network attacker causes an rpd crash when HFRR link protection is used

A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos on MX Series routers allows an unauthenticated network attacker to cause a denial of service via an eBGP route update when HFRR link protection is configured in a VRF.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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CVE-2026-102062

Junos OS: SRX Series: An compromised HTTPS feed server can cause remote code execution when Security Intelligence is used

An Use of Externally-Controlled Format String vulnerability in the ipfd daemon of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker to execute code with root privileges via a compromised or impersonated configured HTTPS feed server.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
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CVE-2026-102064

Junos OS and Junos OS Evolved: An attacker causes an rpd crash when inter-AS MVPN ingress replication is used

A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to cause rpd crash via malformed BGP MCAST-VPN updates from a configured eBGP peer.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
CVE-2026-102011

Junos OS and Junos OS Evolved: An attacker causes rpd to crash when LDP link protection is enabled

A Reachable Assertion vulnerability in the rpd process of Juniper Networks Junos OS and Junos EVO allows an adjacent attacker to cause a denial of service via an established LDP session when two misconfigured neighbors (or one neighbor duplicated by an L2 loop) advertise the same transport address on a link-protected interface.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
CVE-2026-102012

Junos OS Evolved: An attacker causes na-grpcd to crash when gRPC telemetry is enabled

A Reachable Assertion vulnerability in the na-grpcd process of Juniper Networks Junos OS Evolved allows a remote unauthenticated attacker to cause a denial of service via a gRPC telemetry subscription request.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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