An Improperly Controlled Sequential Memory Allocation vulnerability in the Juniper Networks Deep Packet Inspection-Decoder (JDPI-Decoder) Application Signature component of Junos OS's AppID service on SRX Series devices will stop the JDPI-Decoder from identifying dynamic application traffic, allowing an unauthenticated network-based attacker to send traffic to the target device using the JDPI-Decoder, designed to inspect dynamic application traffic and take action upon this traffic, to instead begin to not take action and to pass the traffic through. An example session can be seen by running the following command and evaluating the output. user@device# run show security flow session source-prefix <address/mask> extensive Session ID: <session ID>, Status: Normal, State: Active Policy name: <name of policy> Dynamic application: junos:UNKNOWN, <<<<< LOOK HERE Please note, the JDPI-Decoder and the AppID SigPack are both affected and both must be upgraded along with the operating system to address the matter. By default, none of this is auto-enabled for automatic updates. This issue affects: Juniper Networks any version of the JDPI-Decoder Engine prior to version 5.7.0-47 with the JDPI-Decoder enabled using any version of the AppID SigPack prior to version 1.550.2-31 (SigPack 3533) on Junos OS on SRX Series: All versions prior to 19.1R3-S10; 19.2 versions prior to 19.2R3-S7; 19.3 versions prior to 19.3R3-S8; 19.4 versions prior to 19.4R3-S11; 20.1 version 20.1R1 and later versions prior to 20.2R3-S7; 20.3 version 20.3R1 and later versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3-S5; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S1; 22.2 versions prior to 22.2R2-S1, 22.2R3; 22.3 versions prior to 22.3R1-S2, 22.3R2;
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited integrity, for affected systems. Impacting 31 products from juniper, from juniper, from juniper and 28 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2023-04-17T22:15:08.960
2026-06-17T05:49:05.727
Modified
CVSSv3.1: 5.3 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | juniper | appid_service_sigpack | < 1.550.2-31 | Yes |
| Application | juniper | jdpi-decoder_engine | < 5.7.0-47 | Yes |
| Hardware | juniper | srx100 | - | No |
| Hardware | juniper | srx110 | - | No |
| Hardware | juniper | srx1400 | - | No |
| Hardware | juniper | srx1500 | - | No |
| Hardware | juniper | srx210 | - | No |
| Hardware | juniper | srx220 | - | No |
| Hardware | juniper | srx240 | - | No |
| Hardware | juniper | srx240h2 | - | No |
| Hardware | juniper | srx240m | - | No |
| Hardware | juniper | srx300 | - | No |
| Hardware | juniper | srx320 | - | No |
| Hardware | juniper | srx340 | - | No |
| Hardware | juniper | srx3400 | - | No |
| Hardware | juniper | srx345 | - | No |
| Hardware | juniper | srx3600 | - | No |
| Hardware | juniper | srx380 | - | No |
| Hardware | juniper | srx4000 | - | No |
| Hardware | juniper | srx4100 | - | No |
| Hardware | juniper | srx4200 | - | No |
| Hardware | juniper | srx4600 | - | No |
| Hardware | juniper | srx5000 | - | No |
| Hardware | juniper | srx5400 | - | No |
| Hardware | juniper | srx550 | - | No |
| Hardware | juniper | srx550_hm | - | No |
| Hardware | juniper | srx550m | - | No |
| Hardware | juniper | srx5600 | - | No |
| Hardware | juniper | srx5800 | - | No |
| Hardware | juniper | srx650 | - | No |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.1 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.2 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.3 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 19.4 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.1 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.2 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.3 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 20.4 | Yes |
| Operating System | juniper | junos | 21.1 | Yes |
| Operating System | juniper | junos | 21.1 | Yes |
| Operating System | juniper | junos | 21.1 | Yes |
| Operating System | juniper | junos | 21.1 | Yes |
| Operating System | juniper | junos | 21.1 | Yes |
| Operating System | juniper | junos | 21.1 | Yes |
| Operating System | juniper | junos | 21.1 | Yes |
| Operating System | juniper | junos | 21.1 | Yes |
| Operating System | juniper | junos | 21.1 | Yes |
| Operating System | juniper | junos | 21.1 | Yes |
| Operating System | juniper | junos | 21.1 | Yes |
| Operating System | juniper | junos | 21.2 | Yes |
| Operating System | juniper | junos | 21.2 | Yes |
| Operating System | juniper | junos | 21.2 | Yes |
| Operating System | juniper | junos | 21.2 | Yes |
| Operating System | juniper | junos | 21.2 | Yes |
| Operating System | juniper | junos | 21.2 | Yes |
| Operating System | juniper | junos | 21.2 | Yes |
| Operating System | juniper | junos | 21.2 | Yes |
| Operating System | juniper | junos | 21.2 | Yes |
| Operating System | juniper | junos | 21.2 | Yes |
| Operating System | juniper | junos | 21.2 | Yes |
| Operating System | juniper | junos | 21.3 | Yes |
| Operating System | juniper | junos | 21.3 | Yes |
| Operating System | juniper | junos | 21.3 | Yes |
| Operating System | juniper | junos | 21.3 | Yes |
| Operating System | juniper | junos | 21.3 | Yes |
| Operating System | juniper | junos | 21.3 | Yes |
| Operating System | juniper | junos | 21.3 | Yes |
| Operating System | juniper | junos | 21.3 | Yes |
| Operating System | juniper | junos | 21.3 | Yes |
| Operating System | juniper | junos | 21.3 | Yes |
| Operating System | juniper | junos | 21.4 | Yes |
| Operating System | juniper | junos | 21.4 | Yes |
| Operating System | juniper | junos | 21.4 | Yes |
| Operating System | juniper | junos | 21.4 | Yes |
| Operating System | juniper | junos | 21.4 | Yes |
| Operating System | juniper | junos | 21.4 | Yes |
| Operating System | juniper | junos | 21.4 | Yes |
| Operating System | juniper | junos | 21.4 | Yes |
| Operating System | juniper | junos | 21.4 | Yes |
| Operating System | juniper | junos | 21.4 | Yes |
| Operating System | juniper | junos | 22.1 | Yes |
| Operating System | juniper | junos | 22.1 | Yes |
| Operating System | juniper | junos | 22.1 | Yes |
| Operating System | juniper | junos | 22.1 | Yes |
| Operating System | juniper | junos | 22.1 | Yes |
| Operating System | juniper | junos | 22.1 | Yes |
| Operating System | juniper | junos | 22.1 | Yes |
| Operating System | juniper | junos | 22.2 | Yes |
| Operating System | juniper | junos | 22.2 | Yes |
| Operating System | juniper | junos | 22.2 | Yes |
| Operating System | juniper | junos | 22.2 | Yes |
| Operating System | juniper | junos | 22.2 | Yes |
| Operating System | juniper | junos | 22.3 | Yes |
| Operating System | juniper | junos | 22.3 | Yes |
| Hardware | juniper | srx100 | - | No |
| Hardware | juniper | srx110 | - | No |
| Hardware | juniper | srx1400 | - | No |
| Hardware | juniper | srx1500 | - | No |
| Hardware | juniper | srx210 | - | No |
| Hardware | juniper | srx220 | - | No |
| Hardware | juniper | srx240 | - | No |
| Hardware | juniper | srx240h2 | - | No |
| Hardware | juniper | srx240m | - | No |
| Hardware | juniper | srx300 | - | No |
| Hardware | juniper | srx320 | - | No |
| Hardware | juniper | srx340 | - | No |
| Hardware | juniper | srx3400 | - | No |
| Hardware | juniper | srx345 | - | No |
| Hardware | juniper | srx3600 | - | No |
| Hardware | juniper | srx380 | - | No |
| Hardware | juniper | srx4000 | - | No |
| Hardware | juniper | srx4100 | - | No |
| Hardware | juniper | srx4200 | - | No |
| Hardware | juniper | srx4600 | - | No |
| Hardware | juniper | srx5000 | - | No |
| Hardware | juniper | srx5400 | - | No |
| Hardware | juniper | srx550 | - | No |
| Hardware | juniper | srx550_hm | - | No |
| Hardware | juniper | srx550m | - | No |
| Hardware | juniper | srx5600 | - | No |
| Hardware | juniper | srx5800 | - | No |
| Hardware | juniper | srx650 | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For juniper's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.