Juniper Junos OS Vulnerability (JSA83021)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA83021 advisory. - An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow daemon flowd of Juniper Networks Junos OS on SRX4600 and SRX5000 Series allows an attacke...

CVE-2026-33790

An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow daemon flowd of Juniper Networks Junos OS on SRX Series allows an attacker sending a specific, malformed ICMPv6 packet to cause the srxpfe process to crash and restart. Continued receipt and processing of these...

CVE-2026-33790 Junos OS: SRX Series: In a NAT64 configuration, receipt of a specific, malformed ICMPv6 packet will cause the srxpfe process to crash and restart.

An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow daemon flowd of Juniper Networks Junos OS on SRX Series allows an attacker sending a specific, malformed ICMPv6 packet to cause the srxpfe process to crash and restart. Continued receipt and processing of these...

Juniper Junos OS Vulnerability (JSA107874)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA107874 advisory. - An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow daemon flowd of Juniper Networks Junos OS on SRX Series allows an attacker sending a...

Juniper Junos OS Vulnerability (JSA100087)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA100087 advisory. - An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX4600 and SRX5000 Series allow...

CVE-2026-21918

A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On all SRX and MX Series platforms, when during TCP session establishment a specific sequence of...

CVE-2026-21918

A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On all SRX and MX Series platforms, when during TCP session establishment a specific sequence of...

CVE-2026-21918

A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On all SRX and MX Series platforms, when during TCP session establishment a specific sequence of...

CVE-2026-21920

CVE-2026-21920 affects Juniper Networks Junos OS on SRX Series. An unchecked return value in the DNS module causes the flowd process to crash and restart when processing specially crafted DNS requests, leading to DoS/service interruption. Affected versions include 23.4 before 23.4R2-S5, 24.2 befo...

EUVD-2026-2685

An Unchecked Return Value vulnerability in the DNS module 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 configured for DNS processing, receives a specifically formatted DNS request flowd will...

CVE-2026-21920 Junos OS: SRX Series: If a specific request is processed by the DNS subsystem flowd will crash

An Unchecked Return Value vulnerability in the DNS module 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 configured for DNS processing, receives a specifically formatted DNS request flowd will...

CVE-2026-21920 Junos OS: SRX Series: If a specific request is processed by the DNS subsystem flowd will crash

An Unchecked Return Value vulnerability in the DNS module 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 configured for DNS processing, receives a specifically formatted DNS request flowd will...

CVE-2026-21918 Junos OS: SRX and MX Series: When TCP packets occur in a specific sequence flowd crashes

A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On all SRX and MX Series platforms, when during TCP session establishment a specific sequence of...

CVE-2026-21918

CVE-2026-21918 describes a Double Free vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX and MX Series. The issue allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS) by sending a specific sequence of TCP packets during session...

EUVD-2026-2697

A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On all SRX and MX Series platforms, when during TCP session establishment a specific sequence of...

CVE-2026-21918

A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On all SRX and MX Series platforms, when during TCP session establishment a specific sequence of...

EUVD-2026-2687

A Loop with Unreachable Exit Condition 'Infinite Loop' vulnerability in the SIP application layer gateway ALG of Juniper Networks Junos OS on SRX Series and MX Series with MX-SPC3 or MS-MPC allows an unauthenticated network-based attacker sending specific SIP messages over TCP to crash the flow...

PT-2026-3130

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions prior to 22.4R3-S7 Juniper Networks Junos OS versions 23.2 before 23.2R2-S3 Juniper Networks Junos OS versions 23.4 before 23.4R2-S4 Juniper Networks Junos OS versions 24.2 before 24.2R2 Description A Double...

Juniper Junos OS Vulnerability (JSA106018)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA106018 advisory. - A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cau...

CVE-2025-52960

A Buffer Copy without Checking Size of Input vulnerability in the Session Initialization Protocol SIP ALG of Juniper Networks Junos OS on MX Series and SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service DoS. When memory utilization is high, and specific SIP...