CVE-2026-78417

MEDIUM CVSS 3.1: 4.3 EPSS 0.15%
Updated Aug 28, 2026
Insufficient
Parameter Value
CVSS 4.3 (MEDIUM)
Type CWE-345 (Insufficient Verification of Data)
Vendor Insufficient
Public PoC No

Insufficient verification of data authenticity in the IronVNC client in Devolutions Remote Desktop Manager 2026.2.17.0 and earlier, 2026.1.24.0 and earlier, allows an on-path attacker to intercept and tamper with VNC sessions via automatic acceptance of the server's RSA key during RSA-AES authentication.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v3.1

Vulnerable Products

devolutions:remote desktop manager