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CVE detail

CVE-2025-21589

An Authentication Bypass Using an Alternate Path or Channel vulnerability in Juniper Networks Session Smart Router may allows a network-based attacker to bypass authentication and take administrative control of the device. This issue affects Session Smart Router:  * from 5.6.7 before 5.6.17,  * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts,  * from 6.2 before 6.2.8-lts,  * from 6.3 before 6.3.3-r2;  This issue affects Session Smart Conductor:  * from 5.6.7 before 5.6.17,  * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts,  * from 6.2 before 6.2.8-lts,  * from 6.3 before 6.3.3-r2;  This issue affects WAN Assurance Managed Routers:  * from 5.6.7 before 5.6.17,  * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts,  * from 6.2 before 6.2.8-lts,  * from 6.3 before 6.3.3-r2.

CVSS 9.3 · CriticalBuzz score 21.9

Buzz score

Why this CVE is surfacing

Buzz score total 21.9

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 13.9 · diversity 8.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
13.9
3 evidence mentions in the snapshot
Diversity score
8.0
3 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
3 source links · newest first
  • March Patch Tuesday warnings: Act fast to plug zero day holes in Windows, VMwareCSO Online

    CISOs need to lean on their admins to plug zero day vulnerabilities in Windows and VMware products as soon as possible, before they are widely exploited. In addition, Windows admins need to be aware of a vulnerability that already has a publicly-available proof of concept exploit that threat actors are sure to jump on. Finally, […]

    newswww.csoonline.comMar 12, 2025, 12:15 AM
  • Juniper Networks fixed a critical flaw in Session Smart RoutersSecurity Affairs

    Juniper Networks has addressed a critical vulnerability, tracked as CVE-2025-21589, impacting the Session Smart Router. Juniper Networks addressed a critical authentication bypass vulnerability, tracked as CVE-2025-21589 (CVSS score of 9.8), affecting its Session Smart Router product. “An Authentication Bypass Using an Alternate Path or Channel vulnerability in Juniper Networks Session Smart Router may allow a network-based […]

    newssecurityaffairs.comFeb 18, 2025, 10:30 PM
  • Critical Vulnerability Patched in Juniper Session Smart RouterSecurityWeek

    A critical vulnerability tracked as CVE-2025-21589 has been patched in Juniper Networks’ Session Smart Router.

    newswww.securityweek.comFeb 18, 2025, 1:20 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

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