A Race Condition vulnerability in Juniper Networks Junos OS LLDP implementation allows an attacker to cause LLDP to crash leading to a Denial of Service (DoS). This issue occurs when crafted LLDP packets are received by the device from an adjacent device. Multiple LACP flaps will occur after LLDP crashes. An indicator of compromise is to evaluate log file details for lldp with RLIMIT. Intervention should occur before 85% threshold of used KB versus maximum available KB memory is reached. show log messages | match RLIMIT | match lldp | last 20 Matching statement is " /kernel: %KERNEL-[number]: Process ([pid #],lldpd) has exceeded 85% of RLIMIT_DATA: " with [] as variable data to evaluate for. This issue affects: Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S15; 12.3X48 versions prior to 12.3X48-D95; 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D200; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S7; 17.1 versions prior to 17.1R2-S11, 17.1R3-S2; 17.2 versions prior to 17.2R1-S9, 17.2R3-S3; 17.3 versions prior to 17.3R2-S5, 17.3R3-S6; 17.4 versions prior to 17.4R2-S4, 17.4R3; 18.1 versions prior to 18.1R3-S5; 18.2 versions prior to 18.2R2-S7, 18.2R3; 18.2X75 versions prior to 18.2X75-D12, 18.2X75-D33, 18.2X75-D50, 18.2X75-D420; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3; 18.4 versions prior to 18.4R1-S5, 18.4R2; 19.1 versions prior to 19.1R1-S4, 19.1R2.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 1 product from juniper organizations running these solutions should prioritize assessment and patching.
Reported in 2020, 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.
2020-07-17T19:15:12.703
2026-06-17T03:02:03.867
Modified
CVSSv3.1: 6.5 (MEDIUM)
AV:A/AC:L/Au:N/C:N/I:N/A:P
6.5
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 12.3x48 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x49 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 15.1x53 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 16.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.1 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.2 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.3 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 17.4 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.1 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2 | Yes |
| Operating System | juniper | junos | 18.2x75 | Yes |
| Operating System | juniper | junos | 18.2x75 | Yes |
| Operating System | juniper | junos | 18.2x75 | Yes |
| Operating System | juniper | junos | 18.2x75 | Yes |
| Operating System | juniper | junos | 18.3 | Yes |
| Operating System | juniper | junos | 18.3 | Yes |
| Operating System | juniper | junos | 18.3 | Yes |
| Operating System | juniper | junos | 18.3 | Yes |
| Operating System | juniper | junos | 18.3 | Yes |
| Operating System | juniper | junos | 18.3 | Yes |
| Operating System | juniper | junos | 18.3 | Yes |
| Operating System | juniper | junos | 18.3 | Yes |
| Operating System | juniper | junos | 18.3 | Yes |
| Operating System | juniper | junos | 18.3 | Yes |
| Operating System | juniper | junos | 18.4 | Yes |
| Operating System | juniper | junos | 18.4 | Yes |
| Operating System | juniper | junos | 18.4 | Yes |
| Operating System | juniper | junos | 18.4 | Yes |
| Operating System | juniper | junos | 18.4 | Yes |
| Operating System | juniper | junos | 18.4 | 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 |
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.