CVE-2026-78417

State: Published
Severity: 4.3 Medium
Published: Aug 24, 2026
Updated: Aug 28, 2026
Reserved: Aug 24, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N	CISA-ADP

Weaknesses

CWE-345 Insufficient Verification of Data Authenticity

Affected Products

Product	Versions
Remote Desktop ManagerDevolutions	before 2026.2.18Affected
Remote Desktop ManagerDevolutions	before 2026.1.25Affected

References

https://devolutions.net/security/advisories/DEVO-2026-0029/

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