Juniper Junos OS Evolved Restrictions incorrect operator

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.2	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Juniper Junos OS Evolved. Affected by this vulnerability is an unknown functionality of the component Restrictions Handler. Executing a manipulation can lead to incorrect operator. This vulnerability is tracked as CVE-2025-52985. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in Juniper Junos OS Evolved. This vulnerability affects an unknown function of the component Restrictions Handler. The manipulation with an unknown input leads to a incorrect operator vulnerability. The CWE definition for the vulnerability is CWE-480. The product accidentally uses the wrong operator, which changes the logic in security-relevant ways. As an impact it is known to affect integrity. CVE summarizes:

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.

The advisory is available at supportportal.juniper.net. This vulnerability was named CVE-2025-52985 since 06/23/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/23/2026).

The vulnerability scanner Nessus provides a plugin with the ID 241654 (Juniper Junos OS Vulnerability (JSA100091)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 23.2R2-S4-EVO, 23.4R2-S5-EVO, 24.2R2-S1-EVO, 24.4R1-S3-EVO or 24.4R2-EVO eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (241654), EUVD (EUVD-2025-21145) and CERT Bund (WID-SEC-2025-1519). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

Juniper MX Series
Juniper JUNOS
Juniper SRX Series
Juniper Security Director
Juniper Junos Space

Productinfo

Type

Router Operating System

Vendor

Juniper

Name

Junos OS Evolved

License

commercial

Website

Vendor: https://www.juniper.net/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (juniper): 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Incorrect operator
CWE: CWE-480
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 241654
Nessus Name: Juniper Junos OS Vulnerability (JSA100091)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Junos OS Evolved 23.2R2-S4-EVO/23.4R2-S5-EVO/24.2R2-S1-EVO/24.4R1-S3-EVO/24.4R2-EVO

Timelineinfo

06/23/2025 CVE reserved
07/11/2025 +18 days Advisory disclosed
07/11/2025 +0 days VulDB entry created
01/23/2026 +196 days VulDB entry last update

Sourcesinfo

Vendor: juniper.net

Advisory: JSA100091
Status: Confirmed

CVE: CVE-2025-52985 (🔒)
GCVE (CVE): GCVE-0-2025-52985
GCVE (VulDB): GCVE-100-316162
EUVD: 🔒
CERT Bund: WID-SEC-2025-1519 - Juniper JUNOS: Mehrere Schwachstellen ermöglichen Privilegieneskalation

Entryinfo

Created: 07/11/2025 20:26
Updated: 01/23/2026 19:06
Changes: 07/11/2025 20:26 (76), 07/12/2025 08:17 (2), 07/18/2025 13:57 (1), 07/18/2025 14:04 (1), 10/12/2025 04:18 (7), 01/23/2026 19:06 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.