Juniper Networks vulnerabilities
We track 311 vulnerabilities in Juniper Networks products across 32 products. 306 are rated high or critical, and 9 have been exploited in real attacks. The most recent was published on October 28, 2026.
Latest Juniper Networks vulnerabilities
- 7.5 High severity
Junos OS: Missing Release of Memory after Effective Lifetime
A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial-of-Service (DoS). On SRX4000 Series
- 7.8 High severity
Junos OS: Improper Neutralization of Special Elements used in an OS Command
An OS command injection vulnerability in the CLI of Juniper Networks Junos OS allows a local, low privileged attacker to take complete control of the device. A specific 'request csds' command doesn't sanitize user provided input so that it can be interpreted a
- 7.5 High severity
Junos OS: Reachable Assertion
A Reachable Assertion vulnerability in the Two-Way Active Measurement Protocol (TWAMP) client of Juniper Networks Junos OS allows an unauthenticated network-based attacker to cause rmopd service disruption via a specific TCP packet.
- 8.8 High severity
Junos OS: Stack-based Buffer Overflow
A Stack-based Buffer Overflow vulnerability in the dot1x daemon of Juniper Networks Junos OS devices operating as Junos Fusion Aggregation Devices allows an adjacent attacker acting as the configured ICCP peer to cause a denial of service and potentially execu
- 7.5 High severity
Junos OS Evolved: Stack-based Buffer Overflow
A Stack-based Buffer Overflow vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated remote attacker to trigger a kernel panic via a crafted TCP packet when key-chain authentication is used for BGP or LDP.
- 7.5 High severity
Junos OS: Improper Validation of Specified Quantity in Input
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 a remote unauthenticated BGP peer to cause an rpd crash via a malformed BGP-signaled SRv6 service
- 7.5 High severity
Junos OS: Reachable Assertion
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.
- 8.1 High severity
Junos OS: Use of Externally-Controlled Format String
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 f
- 8.8 High severity
Junos OS: Stack-based Buffer Overflow
A Stack-based Buffer Overflow vulnerability in the phone-home daemon (phcd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to execute arbitrary code as root via a crafted DHCP SZTP bootstrap message. This issue on
- 8.8 High severity
Junos OS: Improper Neutralization of Special Elements used in an OS Command
An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the phone-home daemon (phcd) of Juniper Networks Junos OS and Junos OS Evolved on EX Series, SRX Series, and QFX Series allows an adjacent unauthenti
- 7.5 High severity
Junos OS: Stack-based Buffer Overflow
A Stack-based Buffer Overflow vulnerability in the jdhcpd process of Juniper Networks Junos OS allows an unauthenticated adjacent attacker to cause a denial of service via a DHCP client response. The issue affects DHCP client operation and can interrupt relate
- 7.1 High severity
Junos OS: Out-of-bounds Read
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 configure
- 8.8 High severity
Junos OS: Stack-based Buffer Overflow
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 serv
- 8.8 High severity
Junos OS: Stack-based Buffer Overflow
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
- 8.8 High severity
Junos OS: Stack-based Buffer Overflow
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 inter
- 8.8 High severity
Junos OS: Stack-based Buffer Overflow
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
- 7.5 High severity
Junos OS: Loop with Unreachable Exit Condition
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.
- 7.5 High severity
Junos OS: Reachable Assertion
A Reachable Assertion vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP-LS peer to cause a denial of service via a BGP-LS update.
- 8.1 High severity
Junos OS: XML Injection
An XML Injection vulnerability in the Unified Threat Management daemon (utmd) of Juniper Networks Junos OS on SRX Series devices allows an unauthenticated network attacker to commit arbitrary device configuration with root privileges via a malicious response f
- 7.5 High severity
Junos OS: Integer Overflow or Wraparound
An Integer Overflow or Wraparound vulnerability in the l2ald process of Juniper Networks Junos OS and Junos OS Evolved allows a configured EVPN BGP peer to cause a denial of service via EVPN Type-2 MAC/IP routes.
- 9.8 Critical severity
Junos OS Evolved: Improper Neutralization of Special Elements used in an OS Command
An OS Command Injection vulnerability in TACACS of Juniper Networks Junos OS Evolved allows a low-privileged TACACS+-authenticated user to execute commands with root privileges when periodic TACACS+ authorization-refresh is enabled.
- 7.5 High severity
Junos OS: Incomplete Cleanup
An Incomplete Cleanup vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows a configured MVPN neighbor to cause a denial of service via a BGP MVPN update when an inter‑region segmented VRF with 'protocols mvpn inter-region-t
- 7.5 High severity
Junos OS: NULL Pointer Dereference
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated configured MSDP peer or adjacent PIM sender to cause a denial of service via an MSDP or PIM policy that us
- 7.5 High severity
Junos OS: NULL Pointer Dereference
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote BGP peer to cause a denial of service when multiple UPDATEs occur over a single TCP session with 'bgp family l2vpn a
- 7.5 High severity
Junos OS: Incorrect Calculation of Buffer Size
An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP neighbor to cause an rpd crash via BGP labeled-unicast UPDATEs when the affected multipath fea
- 7.5 High severity
Junos OS: Improper Control of a Resource Through its Lifetime
An Improper Control of a Resource Through its Lifetime vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent eBGP peer to cause a routing-daemon crash via a BGP route update when RIB sharding is
- 7.5 High severity
Junos OS: Mismatched Memory Management Routines
A Mismatched Memory Management Routines vulnerability in the routing protocol daemon (rpd) process of Juniper Networks Junos OS and Junos OS Evolved allows an authenticated network-based attacker to cause a denial of service via a BGP route update when extende
- 7.5 High severity
Junos OS: Integer Overflow or Wraparound
An Integer Overflow or Wraparound vulnerability in the routing daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an authenticated BGP peer to cause a denial of service via BGP route updates when extended-nexthop-tunnel is enabled.
- 7.5 High severity
Junos OS Evolved: Reachable Assertion
A Reachable Assertion vulnerability in fwstatsd of Juniper Networks Junos OS Evolved allows an authenticated network attacker to cause a denial of service via an SNMP firewall-counter MIB query when at least one firewall counter is configured.
- 7.5 High severity
Junos OS: Reachable Assertion
A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker with access to a configured BGP-LS peer to cause an rpd crash via a crafted BGP-LS Link NLRI advertisements.
- 7.5 High severity
Junos OS: Reachable Assertion
A Reachable Assertion vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an authenticated network-based attacker to cause a denial of service via BGP-LS routing updates.
- 7.5 High severity
Junos OS: Improper Validation of Specified Quantity in Input
An Improper Validation of Specified Quantity in Input vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP MVPN peer to cause a denial of service via a BGP MVPN signaling update.
- 8.8 High severity
Junos OS: Heap-based Buffer Overflow
A Heap-based Buffer Overflow vulnerability in the secure-dot1xd process of Juniper Networks on Junos OS and Junos OS Evolved allows an unauthenticated adjacent network attacker to execute code as root or cause a denial of service via an EAPOL frame sent to an
- 8.8 High severity
Junos OS: Stack-based Buffer Overflow
A Stack-based Buffer Overflow vulnerability in the authd process of Juniper Networks Junos OS allows an attacker able to influence a configured RADIUS server to cause authd to crash or execute code with root privileges via a malicious RADIUS response.
- 7.5 High severity
Junos OS Evolved: Reachable Assertion
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.
- 8.1 High severity
Junos OS: Improper Neutralization of Special Elements used in an SQL Command
An Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in ipfd of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker to execute code with root privileges via a configured Secu
- 7.1 High severity
Junos OS: Improper Handling of Length Parameter Inconsistency
An Improper Handling of Length Parameter Inconsistency vulnerability in the l2ald daemon of Juniper Networks Junos OS and Junos OS Evolved allows an attacker who can control or impersonate a configured MC-LAG ICCP peer to disclose process heap memory or cause
- 9.8 Critical severity
Junos OS: Stack-based Buffer Overflow
A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote configured BGP peer to cause an rpd crash, or on Junos OS remote code-execution, via sending a flow-spec update w
- 9.8 Critical severity
Junos OS: Improper Authentication
An Improper Authentication vulnerability in J-Web of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to bypass J-Web authentication and execute CGI content with elevated privileges via a crafted HTTP request.
- 9.8 Critical severity
Junos OS: Integer Underflow (Wrap or Wraparound)
An Integer Underflow vulnerability in the kernel of Juniper Networks Junos OS with Extended Echo configured allows an unauthenticated, network-based attacker to cause a denial of service by a kernel crash.