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CVE-2025-52961— Junos OS Evolved: PTX Series except PTX10003: An unauthenticated adjacent attacker sending specific valid traffic can cause a memory leak in cfmman leading to FPC crash and restart

CVSS 6.5 · Medium EPSS 0.06% · P17
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I. Basic Information for CVE-2025-52961

Vulnerability Information
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Vulnerability Title
Junos OS Evolved: PTX Series except PTX10003: An unauthenticated adjacent attacker sending specific valid traffic can cause a memory leak in cfmman leading to FPC crash and restart
Source: NVD (National Vulnerability Database)
Vulnerability Description
An Uncontrolled Resource Consumption vulnerability in the Connectivity Fault Management (CFM) daemon and the Connectivity Fault Management Manager (cfmman) of Juniper Networks Junos OS Evolved on PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016 allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS). An attacker on an adjacent device sending specific valid traffic can cause cfmd to spike the CPU to 100% and cfmman's memory to leak, eventually to cause the FPC crash and restart. Continued receipt and processes of these specific valid packets will sustain the Denial of Service (DoS) condition. An indicator of compromise is to watch for an increase in cfmman memory rising over time by issuing the following command and evaluating the RSS number. If the RSS is growing into GBs then consider restarting the device to temporarily clear memory.   user@device> show system processes node fpc<num> detail | match cfmman Example:    show system processes node fpc0 detail | match cfmman    F S UID       PID       PPID PGID   SID   C PRI NI  ADDR SZ    WCHAN   RSS     PSR STIME TTY         TIME     CMD   4 S root      15204     1    15204  15204 0 80  0   - 90802     -      113652   4  Sep25 ?           00:15:28 /usr/bin/cfmman -p /var/pfe -o -c /usr/conf/cfmman-cfg-active.xml This issue affects Junos OS Evolved on PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016: * from 23.2R1-EVO before 23.2R2-S4-EVO, * from 23.4 before 23.4R2-S4-EVO, * from 24.2 before 24.2R2-EVO, * from 24.4 before 24.4R1-S2-EVO, 24.4R2-EVO. This issue does not affect Junos OS Evolved on PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016 before 23.2R1-EVO.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS Evolved 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS Evolved是美国瞻博网络（Juniper Networks）公司的Junos OS 的升级版系统。 Juniper Networks Junos OS Evolved存在资源管理错误漏洞，该漏洞源于Connectivity Fault Management daemon和Connectivity Fault Management Manager存在资源消耗问题，可能导致拒绝服务攻击。以下版本受到影响：23.2R1-EVO版本至23.2R2-S4-EV
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

VendorProductAffected VersionsCPESubscribe
Juniper NetworksJunos OS Evolved 23.2R1-EVO ~ 23.2R2-S4-EVO -

II. Public POCs for CVE-2025-52961

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III. Intelligence Information for CVE-2025-52961

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

CVE-2025-599789.0 CRITICALJunos Space: Stored cross-site scripting vulnerability in web application
CVE-2025-599688.6 HIGHJunos Space Security Director: Insufficient authorization for sensitive resources in web i
CVE-2025-599748.4 HIGHJunos Space Security Director: Persistent Cross-Site Scripting (XSS) vulnerability
CVE-2025-599757.5 HIGHJunos Space: Flooding device with inbound API calls leads to WebUI and CLI management acce
CVE-2025-600047.5 HIGHJunos OS and Junos OS Evolved: Specific BGP EVPN update message causes rpd crash
CVE-2025-599647.5 HIGHJunos OS: SRX4700: When forwarding-options sampling is enabled any traffic destined to the
CVE-2025-111987.4 HIGHSecurity Director Policy Enforcer: An unrestricted API allows a network-based unauthentica
CVE-2025-599576.8 MEDIUMJunos OS: EX4600 Series and QFX5000 Series: An attacker with physical access can open a pe
CVE-2025-599676.5 MEDIUMJunos OS Evolved: ACX7024, ACX7024X, ACX7100-32C, ACX7100-48L, ACX7348, ACX7509: When spe
CVE-2025-599586.5 MEDIUMJunos OS Evolved: PTX Series: When a firewall filter rejects traffic these packets are err
CVE-2025-599766.5 MEDIUMJunos Space: Arbitrary file download vulnerability in web interface
CVE-2025-599806.5 MEDIUMJunos OS: When a user with the name ftp or anonymous is configured unauthenticated filesys
CVE-2025-599876.1 MEDIUMJunos Space: The arbitrary device search field is vulnerable to reflected cross-site scrip
CVE-2025-599816.1 MEDIUMJunos Space: Device Template Definition page is vulnerable to reflected cross-site script
CVE-2025-599826.1 MEDIUMJunos Space: Dashboard Search field is vulnerable to reflected cross-site script injection
CVE-2025-599836.1 MEDIUMJunos Space: Template Definition page is vulnerable to reflected cross-site script injecti
CVE-2025-599846.1 MEDIUMJunos Space: Global Search is vulnerable to reflected cross-site script injection
CVE-2025-599856.1 MEDIUMJunos Space: Purging Policy field is vulnerable to reflected cross-site script injection
CVE-2025-599866.1 MEDIUMJunos Space: Input fields in Model Devices are vulnerable to reflected cross-site script i
CVE-2025-599976.1 MEDIUMJunos 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 &rarr; →

IV. Related Vulnerabilities

Same product: Junos OS Evolved
Same vendor: Juniper Networks
Same weakness: CWE-400

V. Comments for CVE-2025-52961

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