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Juniper Junos OS Vulnerability (JSA100091)

high Nessus Plugin ID 241654

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA100091 advisory.

 - 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.
 (CVE-2025-52985)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Apply the relevant Junos software release referenced in Juniper advisory JSA100091

See Also

http://www.nessus.org/u?ca4098b1

Plugin Details

Severity: High

ID: 241654

File Name: juniper_jsa100091.nasl

Version: 1.1

Type: combined

Published: 7/9/2025

Updated: 7/9/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2025-52985

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:juniper:junos

Required KB Items: Host/Juniper/JUNOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 7/9/2025

Vulnerability Publication Date: 7/9/2025

Reference Information

CVE: CVE-2025-52985

JSA: JSA100091