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CVE-2026-78417

MEDIUM
4.3
CVSS Score
Published: August 24, 2026 at 06:26 PM UTC
Updated: October 12, 2026 at 03:10 PM UTC
1 product affected across 1 vendorRemote Desktop Manager

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remote Desktop Manager· Devolutions
90%
0 ≤ v < 2026.1.250 ≤ v < 2026.2.180
Affected range stops below 2026.1.25, so it looks safe — our inference, not a vendor statement
Affected range stops below 2026.2.18, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-345

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