CVE-2017-2335: ScreenOS: XSS vulnerability in ScreenOS Firewall

Severity: medium (CVSS 5.4 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-07-17 · updated 2026-06-17
Weakness: CWE-79

Description

A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'security' role to inject HTML/JavaScript content into the management session of other users including the administrator. This enables the lower-privileged user to effectively execute commands with the permissions of an administrator. This issue affects Juniper Networks ScreenOS 6.3.0 releases prior to 6.3.0r24 on SSG Series. No other Juniper Networks products or platforms are affected by this issue.

Affected products

Juniper Networks ScreenOS: 6.3.0, 6.3.0-r1, 6.3.0-r10, 6.3.0-r11, 6.3.0-r12, 6.3.0-r13 (+18)

References

Get alerted when CVE-2017-2335 or the next vulnerability affects your stack