SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-59974

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Junos Space Security Director allows an attacker to inject malicious scripts into the application, which are then stored and executed in the context…

CRITICAL 9.3EPSS 0.38%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Junos Space Security Director allows an attacker to inject malicious scripts into the application, which are then stored and executed in the context of other users' browsers when they access affected pages.This issue affects Juniper Security Director:  * All versions before 24.1R4.

CVSS 4.0
9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
0.38% probability · 31th percentile
CISA KEV
Not listed
Weakness
CWE-79
Affected
juniper/space security director
Source
sirt@juniper.net

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.