6.9

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

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Juniper ≫ Junos Os Evolved Version 23.2 Update r2-s3
Juniper ≫ Junos Os Evolved Version 23.4 Update r2-s3
Juniper ≫ Junos Os Evolved Version 23.4 Update r2-s4
Juniper ≫ Junos Os Evolved Version 24.2 Update r2
Juniper ≫ Junos Os Evolved Version 24.4 Update -
Juniper ≫ Junos Os Evolved Version 24.4 Update r1
Juniper ≫ Junos Os Evolved Version 24.4 Update r1-s2
Juniper ≫ Junos Os Evolved Version 24.4 Update r2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.145
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Juniper 6.9 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Juniper 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-480 Use of Incorrect Operator

The product accidentally uses the wrong operator, which changes the logic in security-relevant ways.

https://supportportal.juniper.net/JSA100091
Vendor Advisory