CVE-2020-1602— Junos OS and Junos OS Evolved: A vulnerability in JDHCPD allows an attacker to send crafted IPv4 packets may take over the code execution of the JDHCPD process.
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I. Basic Information for CVE-2020-1602
Vulnerability Information
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Vulnerability Title
Junos OS and Junos OS Evolved: A vulnerability in JDHCPD allows an attacker to send crafted IPv4 packets may take over the code execution of the JDHCPD process.
Source: NVD (National Vulnerability Database)
Vulnerability Description
When a device using Juniper Network's Dynamic Host Configuration Protocol Daemon (JDHCPD) process on Junos OS or Junos OS Evolved which is configured in relay mode it vulnerable to an attacker sending crafted IPv4 packets who may remotely take over the code execution of the JDHDCP process. This issue affect IPv4 JDHCPD services. This issue affects: Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D200; 15.1X53 versions prior to 15.1X53-D592; 16.1 versions prior to 16.1R7-S6; 16.2 versions prior to 16.2R2-S11; 17.1 versions prior to 17.1R2-S11, 17.1R3-S1; 17.2 versions prior to 17.2R2-S8, 17.2R3-S3; 17.3 versions prior to 17.3R3-S6; 17.4 versions prior to 17.4R2-S7, 17.4R3; 18.1 versions prior to 18.1R3-S8; 18.2 versions prior to 18.2R3-S2; 18.2X75 versions prior to 18.2X75-D60; 18.3 versions prior to 18.3R1-S6, 18.3R2-S2, 18.3R3; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3; 19.1 versions prior to 19.1R1-S3, 19.1R2; 19.2 versions prior to 19.2R1-S3, 19.2R2*. and All versions prior to 19.3R1 on Junos OS Evolved. This issue do not affect versions of Junos OS prior to 15.1, or JDHCPD operating as a local server in non-relay mode.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS和Junos OS Evolved 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS是美国瞻博网络（Juniper Networks）公司的一套专用于该公司的硬件设备的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。 Juniper Networks Junos OS和Junos OS Evolved中的IPv4 JDHCPD服务存在资源管理错误漏洞。攻击者可通过发送特制的IPv4数据包利用该漏洞控制JDHDCP进程的代码执行过程。以下产品及版本受到影响：Juniper Networks Junos OS 15.1版本，1
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Juniper Networks | Junos OS | 15.1 ~ 15.1R7-S6 | - | |
| Juniper Networks | Junos OS Evolved | unspecified ~ 19.3R1 | - |
II. Public POCs for CVE-2020-1602
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|---|
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Same Patch Batch · Juniper Networks · 2020-01-15 · 11 CVEs total
| CVE-2020-1605 | 8.8 HIGH | Junos OS and Junos OS Evolved: A vulnerability in JDHCPD allows an attacker to send crafte |
| CVE-2020-1609 | 8.8 HIGH | Junos OS and Junos OS Evolved: A vulnerability in JDHCPD allows an attacker to send crafte |
| CVE-2020-1603 | 8.6 HIGH | Junos OS: Improper handling of specific IPv6 packets sent by clients eventually kernel cra |
| CVE-2020-1607 | 7.5 HIGH | Junos OS: Cross-Site Scripting (XSS) in J-Web |
| CVE-2020-1608 | 7.5 HIGH | Junos OS: MX Series: In BBE configurations, receipt of a specific MPLS or IPv6 packet caus |
| CVE-2020-1600 | 6.5 MEDIUM | Junos OS: A specific SNMP command can trigger a high CPU usage Denial of Service in the RP |
| CVE-2020-1604 | 6.5 MEDIUM | Junos OS: EX4300/EX4600/QFX3500/QFX5100 Series: Stateless IP firewall filter may fail to e |
| CVE-2020-1611 | 6.5 MEDIUM | Junos Space: Malicious HTTP packets sent to Junos Space allow an attacker to view all file |
| CVE-2020-1606 | 5.4 MEDIUM | Junos OS: Path traversal vulnerability in J-Web |
| CVE-2020-1601 | 5.3 MEDIUM | Junos OS: Upon receipt of certain types of malformed PCEP packets the pccd process may cra |
IV. Related Vulnerabilities
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Same vendor: Juniper Networks
- CVE-2026-33791
Junos OS and Junos OS Evolved: Execution of crafted CLI comm - CVE-2026-33790
Junos OS: SRX Series: In a NAT64 configuration, receipt of a - CVE-2026-33787
Junos OS: SRX1500, SRX4100, SRX4200, SRX4600: When a specifi - CVE-2026-33785
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