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CVE-2025-52985— Junos OS Evolved: When a control-plane firewall filter refers to a prefix-list with more than 10 entries it's not matching

Quick assessment

Affected
Juniper Networks Junos OS Evolved
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 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存在安全漏洞，该漏洞源于操作符使用错误，可能导致绕过安全限制。

CVSS 5.3 · Medium EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1562.001
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I. Basic Information for CVE-2025-52985

Vulnerability Information
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Vulnerability Title
Junos OS Evolved: When a control-plane firewall filter refers to a prefix-list with more than 10 entries it's not matching
Source: CVE Program / CVE List V5
Vulnerability Description
A Use of Incorrect Operator vulnerability in the Routing Engine firewall of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to bypass security restrictions. When a firewall filter which is applied to the lo0 or re:mgmt interface references a prefix list with 'from prefix-list', and that prefix list contains more than 10 entries, the prefix list doesn't match and packets destined to or from the local device are not filtered. This issue affects firewall filters applied to the re:mgmt interfaces as input and output, but only affects firewall filters applied to the lo0 interface as output. This issue is applicable to IPv4 and IPv6 as a prefix list can contain IPv4 and IPv6 prefixes. This issue affects Junos OS Evolved: * 23.2R2-S3-EVO versions before 23.2R2-S4-EVO, * 23.4R2-S3-EVO versions before 23.4R2-S5-EVO, * 24.2R2-EVO versions before 24.2R2-S1-EVO, * 24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO. This issue doesn't affect Junos OS Evolved versions before 23.2R1-EVO.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用操作符不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS Evolved 安全漏洞
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存在安全漏洞，该漏洞源于操作符使用错误，可能导致绕过安全限制。
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 Evolved 23.2R2-S3-EVO ~ 23.2R2-S4-EVO -

II. Public POCs for CVE-2025-52985

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III. Intelligence Information for CVE-2025-52985

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Vendor Advisories for CVE-2025-52985 (1)

Same Patch Batch · Juniper Networks · 2025-07-11 · 24 CVEs total

CVE-2025-52950 9.6 CRITICAL Juniper Security Director: Insufficient authorization for multiple endpoints in web interf
CVE-2025-52954 7.8 HIGH Junos OS Evolved: A low-privileged user can execute arbitrary Junos commands and modify th
CVE-2025-52946 7.5 HIGH Junos OS and Junos OS Evolved: With traceoptions enabled, receipt of malformed AS PATH cau
CVE-2025-52981 7.5 HIGH Junos OS: SRX Series: Sequence of specific PIM packets causes a flowd crash
CVE-2025-52980 7.5 HIGH Junos OS: SRX300 Series: rpd will crash upon receiving a specific, valid BGP UPDATE messag
CVE-2025-30661 7.3 HIGH Junos OS: Low-privileged user can cause script to run as root, leading to privilege escala
CVE-2025-52983 7.2 HIGH Junos OS: After removing ssh public key authentication root can still log in
CVE-2025-52988 6.7 MEDIUM Junos OS and Junos OS Evolved: Privilege escalation to root via CLI command 'request syste
CVE-2025-52953 6.5 MEDIUM Junos OS and Junos OS Evolved: An unauthenticated adjacent attacker sending a valid BGP UP
CVE-2025-52947 6.5 MEDIUM Junos OS: ACX Series: When 'hot-standby' mode is configured for an L2 circuit, interface f
CVE-2025-52949 6.5 MEDIUM Junos OS and Junos OS Evolved: In an EVPN environment, receipt of specifically malformed B
CVE-2025-52955 6.5 MEDIUM Junos OS and Junos OS Evolved: When jflow/sflow is configured continuous logical interface
CVE-2025-52952 6.5 MEDIUM Junos OS: MX Series with MPC-BUILTIN, MPC 1 through MPC 9: Receipt and processing of a mal
CVE-2025-52964 6.5 MEDIUM Junos OS and Junos OS Evolved: Receipt of a specific BGP UPDATE causes an rpd crash on dev
CVE-2025-6549 6.5 MEDIUM Junos OS: SRX Series: J-Web can be exposed on additional interfaces
CVE-2025-52982 5.9 MEDIUM Junos OS: MX Series: When specific SIP packets are processed the MS-MPC will crash
CVE-2025-52984 5.9 MEDIUM Junos OS and Junos OS Evolved: When a static route points to a reject next-hop and a gNMI
CVE-2025-52948 5.9 MEDIUM Junos OS: Specific unknown traffic pattern causes FPC and system to crash when packet capt
CVE-2025-52951 5.8 MEDIUM Junos OS: IPv6 firewall filter fails to match payload-protocol
CVE-2025-52963 5.5 MEDIUM Junos OS: A low-privileged user can disable an interface

Showing top 20 of 24 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Junos OS Evolved
Same vendor: Juniper Networks
Same weakness: CWE-480

V. Comments for CVE-2025-52985

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