What is CVE-2025-59978?

CVE-2025-59978 is a critical-severity vulnerability in Juniper Junos_space, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2025-10-09.

How severe is CVE-2025-59978?

Critical severity. CVSS v3 base score is 9.0 out of 10.

XSS in Juniper Junos_space

CVE-2025-59978

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 t…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (43.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

Affected products

Juniper Junos_space — versions 24.1
Juniper Networks Junos Space — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

sirt@juniper.net (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-59978?: CVE-2025-59978 is a critical-severity vulnerability in Juniper Junos_space, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2025-10-09.
How severe is CVE-2025-59978?: Critical severity. CVSS v3 base score is 9.0 out of 10.