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VulnerabilityPublished Updated

CVE-2025-52954: Juniper Networks Junos OS Evolved · Missing Authorization

Affects Juniper Networks Junos OS EvolvedSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Juniper Networks Junos OS EvolvedAffected
  • 0 – 24.4
6 affected builds
Fixed in–

AI-suggested

To mitigate CVE-2025-52954, organizations should: 1) Immediately apply the official patches provided by Juniper Networks for all affected Junos OS Evolved versions as listed in the advisory. 2) Restrict local access to devices running Junos OS Evolved, especially limiting access to the internal VRF interfaces to trusted administrators only. 3) Implement strict network segmentation and access controls to prevent unauthorized users from sending packets over the internal VRF. 4) Monitor system logs and network traffic for unusual command executions or configuration changes indicative of exploitation attempts. 5) Employ multi-factor authentication and role-based access controls to reduce the risk of privilege escalation. 6) Conduct regular security audits and vulnerability assessments on network devices to identify and remediate potential weaknesses. 7) Maintain an incident response plan tailored to network device compromise scenarios.

Description

A Missing Authorization vulnerability in the internal virtual routing and forwarding (VRF) of Juniper Networks Junos OS Evolved allows a local, low-privileged user to gain root privileges, leading to a system compromise. Any low-privileged user with the capability to send packets over the internal VRF can execute arbitrary Junos commands and modify the configuration, and thus compromise the system.  This issue affects Junos OS Evolved:  * All versions before 22.2R3-S7-EVO,  * from 22.4 before 22.4R3-S7-EVO,  * from 23.2 before 23.2R2-S4-EVO,  * from 23.4 before 23.4R2-S5-EVO,  * from 24.2 before 24.2R2-S1-EVO * from 24.4 before 24.4R1-S2-EVO, 24.4R2-EVO.

References

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