CVE-2026-78417
Medium
Description
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.
SeverityMedium
CVSS4.3
Exploit probability—
ProductRemote Desktop Manager
PublishedAug 24, 2026
First seenAug 24, 2026
Weakness typeCWE-345CWE-345
How to fix
Update
- Devolutions Remote Desktop Manager2026.2.18, 2026.1.25 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Devolutions Remote Desktop Manager | v < 2026.2.18, v < 2026.1.25 | 2026.2.18, 2026.1.25 |
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