Juniper Networks Junos OS Vulnerabilities & Security Advisories
219 advisories tracked · Juniper SIRT (JSA) via NVD · 0 listed in the CISA Known Exploited Vulnerabilities catalog
Every row below is a published Juniper Networks advisory that VulniPulse classified as Junos OS, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 16 critical, 95 high, 106 medium, 2 low.
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Source
Juniper SIRT (JSA) via NVD
Juniper's advisory portal (kb.juniper.net) is a login-walled Salesforce app, so VulniPulse ingests Juniper SIRT (JSA) advisories from NVD, filtered to Juniper's own CNA ([email protected]) — official, machine-readable data with the affected Junos releases in each description. Junos on SRX/MX/EX/QFX and Junos Space are the common targets.
Latest Juniper Junos OS advisories
Medium [CVE-2026-101989] Junos OS and Junos OS Evolved: An crafted LDP message causes an rpd crash when LDP is enabled
A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a compromised LDP neighbor to cause an rpd crash via a crafted LDP message.
Medium [CVE-2026-101992] Junos OS and Junos OS Evolved: A BGP peer causes an rpd crash when automatic VPLS site ID is used
An Improper Input Validation vulnerability in the routing protocol daemon (rpd) process of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP peer to cause an rpd crash via a BGP VPLS signaling update.
Medium [CVE-2026-101993] Junos OS and Junos OS Evolved: An eBGP peer causes an rpd crash when VPLS automatic site-ID collision resolution is used
A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent eBGP peer to cause a denial of service via a VPLS signaling update when automatic site-ID negotiation is enabled.
Medium [CVE-2026-101996] Junos OS and Junos OS Evolved: An inconsistent ICCP peer message causes an l2ald crash when MC-LAG is configured
A Reachable Assertion vulnerability in the l2ald daemon of Juniper Networks Junos OS and Junos OS Evolved devices configured for MC-LAG/ICCP allows an adjacent attacker to cause a denial of service via an inconsistent ICCP peer message.
Medium [CVE-2026-102066] Improper Validation of Specified Quantity in Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a denial of service via a malformed RSVP packet when RSVP is enabled on the receiving interface
A Improper Validation of Specified Quantity in Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a denial of service via a malformed RSVP packet when RSVP is enabled on the receiving interface.
Medium [CVE-2026-102071] Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service via a specific RSVP packet
A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service via a specific RSVP packet.
Medium [CVE-2026-102078] Use After Free vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS)
A Use After Free vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). When web filtering for TCP traffic is configured, a high volume of DNS requests increases the likelihood of a flowd crash and restart, which leads to a complete service outage until the service has automatically recovered. This is a race condition outside the attacker's direct control. This issue affects Junos OS on SRX Series: - All versions before 23.2R2-S5; - from 23.4 before 23.4R2-S6; - from 25.2 before 25.2R1-S1, 25.2R2.
Medium [CVE-2026-102080] Improper Resource Locking vulnerability in the clock synchronization daemon (clksyncd) of Juniper Networks Junos OS on MX Series allows a unauthenticated, logically adjacent attacker to cause a Denial-of-Service (DoS)
An Improper Resource Locking vulnerability in the clock synchronization daemon (clksyncd) of Juniper Networks Junos OS on MX Series allows a unauthenticated, logically adjacent attacker to cause a Denial-of-Service (DoS). If a SyncE or PTP upstream node sends a malformed message to an MX device equipped with SCBE3, a false 19.44MHz alarm is generated on the master RE. This leads to persistent RE switchovers and a clksyncd process crash. This issue is outside the attacker's direct control as it's a race condition. This issue affects Junos OS on MX Series: - All versions before 23.2R2-S7.7; - 23.4 versions before 23.4R2-S8.13; - 25.4 versions before 25.4R1-S2.
Medium [CVE-2026-102082] Improper Handling of Missing Special Element vulnerability in the SSL plugin of Juniper Networks Junos OS on SRX Series allows a network-based, unauthenticated attacker to cause a Denial-of-Service (DoS)
An Improper Handling of Missing Special Element vulnerability in the SSL plugin of Juniper Networks Junos OS on SRX Series allows a network-based, unauthenticated attacker to cause a Denial-of-Service (DoS). This issue is will occur when 'ssl-proxy' is configured on SRX platforms and during a TLS session-resumption attempt a specifically malformed TLS message is received. This results in an invalid pointer access and PFE crash which causes a temporary loss of traffic forwarding until the PFE automatically recovers. The exact internal timing to trigger this issue is outside the attacker's direct control. This issue affects Junos OS on SRX Series: - All versions before 23.2R2-S5; - 23.4 versions before 23.4R2-S5;
Medium [CVE-2026-102083] Improper Resource Locking vulnerability in the UTM processing of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS)
An Improper Resource Locking vulnerability in the UTM processing of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). When UTM WebFiltering is configured and the WebFiltering cloud server is unreachable, sustained HTTP traffic load may cause the UTM subsystem to crash and restart, which will lead to a complete service outage until the system has recovered. When category lookup requests cannot be completed, they accumulate internally. Under high load and specific timing conditions, an invalid internal state can occur during cleanup of pending WebFiltering lookups, resulting in a crash of the UTM process. This issue applies to both NextGeneration WebFiltering (NGWF) and Enhanced WebFiltering (EWF). This issue affects Junos OS on SRX Series: - 23.2 versions from 23.2R2 before 23.2R2-S7.7; - 23.4 versions from 23.4R2 before 23.4R2-S8.13;
Medium [CVE-2026-102085 +1] Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a limited information disclosure and availability impact to the device
An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a limited information disclosure and availability impact to the device. Due to a wrong initialization, a process which should only be able to communicate internally within the device can be reached over the network via an open port. This leads to a device being inadvertently exposed and increased CPU cycles spent processing ingress packets. This issue affects Junos OS Evolved: - All versions before 23.2R2-S7.7-EVO; Please note that this issue is similar to but not identical CVE-2026-33803.
Medium [CVE-2026-102086] NULL Pointer Dereference vulnerability in the DNS plugin of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial-of-Service (DoS)
A NULL Pointer Dereference vulnerability in the DNS plugin of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial-of-Service (DoS). When multiple DNS queries are received in a single flow session, where one query matches a Security Intelligence (SecIntel) feed and another query is sent for DNS Domain Generation Algorithm (DGA) analysis, an error in processing logging of these asynchronous tasks can lead to an FPC crash. The exact timing conditions are outside an attacker's direct control. This issue affects Junos OS on SRX Series: - All versions before 23.2R2-S7.7; - from 23.4 before 23.4R2-S8.13; - from 25.4 before 25.4R1-S2.
Medium [CVE-2026-102087] Incomplete List of Disallowed Inputs vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS)
An Incomplete List of Disallowed Inputs vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS). When in a BGP traffic engineering scenario a specific, valid, optional, non-transitive BGP update is received over an established BGP session, RPD crashes and automatically restarts, which leads to traffic impact until routing has reconverged. This issue affects: - All versions before 23.2R2-S6; - 23.4 versions before 23.4R2-S7;
Medium [CVE-2026-103993] Out-of-bounds Write vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker which sends a specific set of BGP communities to cause a Denial-of-Service (DoS) as rpd crashes when graceful-shutdown sender community is added when attempting to advertise
An Out-of-bounds Write vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker which sends a specific set of BGP communities to cause a Denial-of-Service (DoS) as rpd crashes when graceful-shutdown sender community is added when attempting to advertise.
Medium [CVE-2026-101974] Junos OS and Junos OS Evolved: Malformed OSPF packets cause rpd memory disclosure or service disruption when link-local TE processing is used
An Improper Validation of Specified Quantity in Input vulnerability in rpd of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent OSPF peer to disclose rpd memory or cause a rpd crash via a malformed OSPF packets.
Medium [CVE-2026-102067] Improper Validation of Specified Quantity in Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a denial of service via a crafted RSVP packet when L2 LSP support is enabled
An Improper Validation of Specified Quantity in Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a denial of service via a crafted RSVP packet when L2 LSP support is enabled.
Medium [CVE-2026-101995] Junos OS and Junos OS Evolved: Malformed ICCP packets cause l2ald memory disclosure and disruption
An Improper Validation of Specified Quantity in Input vulnerability in the l2ald Affected products named by the advisory: Junos OS; Junos OS Evolved.
Medium [CVE-2026-102072] Improper Handling of Highly Compressed Data vulnerability in the gRPC library used by na-grpcd of Juniper Networks Junos OS allows an authenticated network-based attacker to cause a denial of service via a compressed gRPC request
An Improper Handling of Highly Compressed Data vulnerability in the gRPC library used by na-grpcd of Juniper Networks Junos OS allows an authenticated network-based attacker to cause a denial of service via a compressed gRPC request.
Medium [CVE-2026-102063] 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
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. Affected products named by the advisory: MX. Affected product named by the advisory: Junos OS.
Medium [CVE-2026-101960] Junos OS Evolved: QFX Series: A BGP peer causes an rpd crash when global load balancing is enabled
An Out-of-bounds Write vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS Evolved on QFX5240, QFX5241 and QFX5250 configured for BGP global-load-balancing and more than 128 ecmp next-hops allows an attacker to cause an rpd crash.