CVE-2020-1647

On Juniper Networks SRX Series with ICAP (Internet Content Adaptation Protocol) redirect service enabled, a double free vulnerability can lead to a Denial of Service (DoS) or Remote Code Execution (RCE) due to processing of a specific HTTP message. Continued processing of this specific HTTP message may result in an extended Denial of Service (DoS). The offending HTTP message that causes this issue may originate both from the HTTP server or the client. This issue affects Juniper Networks Junos OS on SRX Series: 18.1 versions prior to 18.1R3-S9; 18.2 versions prior to 18.2R3-S3; 18.3 versions prior to 18.3R2-S4, 18.3R3-S1; 18.4 versions prior to 18.4R2-S5, 18.4R3; 19.1 versions prior to 19.1R2; 19.2 versions prior to 19.2R1-S2, 19.2R2; 19.3 versions prior to 19.3R2. This issue does not affect Juniper Networks Junos OS prior to 18.1R1.

• CWE-415
• CWE-415

• https://kb.juniper.net/JSA11034Vendor Advisory
• https://kb.juniper.net/JSA11034Vendor Advisory

Published

Jul 17, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2020-1640An improper use of a validation framework when processing in…7.5
• CVE-2020-1641A Race Condition vulnerability in Juniper Networks Junos OS …6.5
• CVE-2020-1643Execution of the "show ospf interface extensive" or "show os…5.5
• CVE-2020-1644On Juniper Networks Junos OS and Junos OS Evolved devices, t…7.5
• CVE-2020-1645When DNS filtering is enabled on Juniper Networks Junos MX S…8.3
• CVE-2020-1646On Juniper Networks Junos OS and Junos OS Evolved devices, p…7.5
• CVE-2020-1648On Juniper Networks Junos OS and Junos OS Evolved devices, p…7.5
• CVE-2020-1649When a device running Juniper Networks Junos OS with MPC7, M…7.5
• CVE-2020-1650On Juniper Networks Junos MX Series with service card config…7.5
• CVE-2020-1651On Juniper Networks MX series, receipt of a stream of specif…6.5
• CVE-2020-1652OpenNMS is accessible via port 94439.8
• CVE-2020-16526Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…