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CVE-2025-59978

Juniper Junos Space cross-site scripting (XSS)

9.0 CRITICALEPSS 0.53%
  1. Published9 Oct 2025

Description

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Juniper Networks Junos Space allows an attacker to store script tags directly in web pages that, when viewed by another user, enable the attacker to execute commands with the target's administrative permissions. This issue affects all versions of Junos Space before 24.1R4.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected products

Juniper Junos Space< 24.1 · 24.1

Remediation

Fixed in
Juniper Junos Space≥ 24.1

References

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Frequently asked

Is CVE-2025-59978 being actively exploited?

CVE-2025-59978 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.53%.

How severe is CVE-2025-59978?

CVE-2025-59978 has a CVSS 3.1 base score of 9.0, rated critical. EPSS estimates a 0.53% probability of exploitation.

Which products are affected by CVE-2025-59978?

Affected products include Juniper Junos Space.

How do I fix CVE-2025-59978?

Upgrade affected software to a fixed version, for example Juniper Junos Space 24.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-59978 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.