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CVE-2025-59980— Junos OS: When a user with the name ftp or anonymous is configured unauthenticated filesystem access is allowed

Quick assessment

Affected
Juniper Networks Junos OS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 22.4R3-S8之前版本、23.2版本23.2R2-S3之前版本和23.4版本23.4R2之前版本存在安全漏洞，该漏洞源于FTP服务器身份验证绕过，可能导致未经授权的读写访问。

CVSS 6.5 · Medium EPSS 0.29% · P20

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-59980

Vulnerability Information
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Vulnerability Title
Junos OS: When a user with the name ftp or anonymous is configured unauthenticated filesystem access is allowed
Source: CVE Program / CVE List V5
Vulnerability Description
An Authentication Bypass by Primary Weakness in the FTP server of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to get limited read-write access to files on the device. When the FTP server is enabled and a user named "ftp" or "anonymous" is configured, that user can login without providing the configured password and then has read-write access to their home directory. This issue affects Junos OS:  * all versions before 22.4R3-S8, * 23.2 versions before 23.2R2-S3, * 23.4 versions before 23.4R2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用基本弱点进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS 安全漏洞
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 22.4R3-S8之前版本、23.2版本23.2R2-S3之前版本和23.4版本23.4R2之前版本存在安全漏洞，该漏洞源于FTP服务器身份验证绕过，可能导致未经授权的读写访问。
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 0 ~ 22.4R3-S8 -

II. Public POCs for CVE-2025-59980

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III. Intelligence Information for CVE-2025-59980

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Same Patch Batch · Juniper Networks · 2025-10-09 · 40 CVEs total

CVE-2025-59978 9.0 CRITICAL Junos Space: Stored cross-site scripting vulnerability in web application
CVE-2025-59968 8.6 HIGH Junos Space Security Director: Insufficient authorization for sensitive resources in web i
CVE-2025-59974 8.4 HIGH Junos Space Security Director: Persistent Cross-Site Scripting (XSS) vulnerability
CVE-2025-59975 7.5 HIGH Junos Space: Flooding device with inbound API calls leads to WebUI and CLI management acce
CVE-2025-60004 7.5 HIGH Junos OS and Junos OS Evolved: Specific BGP EVPN update message causes rpd crash
CVE-2025-59964 7.5 HIGH Junos OS: SRX4700: When forwarding-options sampling is enabled any traffic destined to the
CVE-2025-11198 7.4 HIGH Security Director Policy Enforcer: An unrestricted API allows a network-based unauthentica
CVE-2025-59957 6.8 MEDIUM Junos OS: EX4600 Series and QFX5000 Series: An attacker with physical access can open a pe
CVE-2025-59967 6.5 MEDIUM Junos OS Evolved: ACX7024, ACX7024X, ACX7100-32C, ACX7100-48L, ACX7348, ACX7509: When spe
CVE-2025-59958 6.5 MEDIUM Junos OS Evolved: PTX Series: When a firewall filter rejects traffic these packets are err
CVE-2025-52961 6.5 MEDIUM Junos OS Evolved: PTX Series except PTX10003: An unauthenticated adjacent attacker sending
CVE-2025-59976 6.5 MEDIUM Junos Space: Arbitrary file download vulnerability in web interface
CVE-2025-59987 6.1 MEDIUM Junos Space: The arbitrary device search field is vulnerable to reflected cross-site scrip
CVE-2025-59981 6.1 MEDIUM Junos Space: Device Template Definition page is vulnerable to reflected cross-site script
CVE-2025-59982 6.1 MEDIUM Junos Space: Dashboard Search field is vulnerable to reflected cross-site script injection
CVE-2025-59983 6.1 MEDIUM Junos Space: Template Definition page is vulnerable to reflected cross-site script injecti
CVE-2025-59984 6.1 MEDIUM Junos Space: Global Search is vulnerable to reflected cross-site script injection
CVE-2025-59985 6.1 MEDIUM Junos Space: Purging Policy field is vulnerable to reflected cross-site script injection
CVE-2025-59986 6.1 MEDIUM Junos Space: Input fields in Model Devices are vulnerable to reflected cross-site script i
CVE-2025-59997 6.1 MEDIUM Junos Space: Fields in the CLI Configlets are vulnerable to reflected cross-site script in

Showing top 20 of 40 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-305

V. Comments for CVE-2025-59980

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