What’s Vulnerable › Vulnerabilities
CVE-2026-78417
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-24 · updated 2026-10-12
- Weakness: CWE-345
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.
Affected products
- Devolutions Remote Desktop Manager: before 2026.2.18; before 2026.1.25 — fixed in 2026.1.25, 2026.2.18
How to fix
Upgrade to a fixed version: Devolutions Remote Desktop Manager 2026.1.25, 2026.2.18. Check the vendor advisory for mitigations.
References
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