CVE-2025-34098 HIGH

CVE-2025-34098: Riverbed SteelHead VCX Authenticated Arbitrary File Read via Log Filter Injection

Vendor Riverbed Technology
Product SteelHead VCX
Weakness CWE-200 · Info exposure
Published July 10, 2025
Last update May 14, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

A path traversal vulnerability exists in Riverbed SteelHead VCX appliances (confirmed in VCX255U 9.6.0a) due to improper input validation in the log filtering functionality exposed via the management web interface. An authenticated attacker can exploit this flaw by submitting crafted filter expressions to the log_filter endpoint using the filterStr parameter. This input is processed by a backend parser that permits execution of file expansion syntax, allowing the attacker to retrieve arbitrary system files via the log viewing interface.

Key dates

02Disclosure timeline

July 10, 2025 CVE published
May 14, 2026 Record updated