Insufficient verification of data authenticity in Devolutions Remote Desktop Manager
Priority LOW 19CWE-345Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-345.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00154 4th percentileScored 2026-11-07
Fix Fixed Remote Desktop Manager (Devolutions): 2026.2.18, 2026.1.25
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Devolutions | Remote Desktop Manager | before 2026.2.18 | 2026.2.18 | Patch available | CNA |
| Devolutions | Remote Desktop Manager | before 2026.1.25 | 2026.1.25 | Patch available | CNA |
- Remote Desktop Manager VendorDevolutions Affected before 2026.2.18 Fixed in 2026.2.18 Patch available CNA
- Remote Desktop Manager VendorDevolutions Affected before 2026.1.25 Fixed in 2026.1.25 Patch available CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:devolutions:remote_desktop_manager:*:*:*:*:*:*:*:* | — | — | Devolutions |
- cpe:2.3:a:devolutions:remote_desktop_manager:*:*:*:*:*:*:*:* Versions — — ·Devolutions
Remediation
- Fix · CNA Remote Desktop Manager (Devolutions) Fixed in 2026.2.18
- Fix · CNA Remote Desktop Manager (Devolutions) Fixed in 2026.1.25
Timeline
- 2026-10-02 Threatist record created from CVE-2026-78417
- 2026-10-03 Alias added: GHSA-v5j9-gh53-cfjx
References
More Devolutions vulnerabilities
- TI-2026-02787 Improper authentication in Devolutions Server CVSS 3.1CRITICAL 9.8
- TI-2026-02768 Improper input validation in Devolutions Server CVSS 3.1CRITICAL 9.8
- TI-2024-02729 Missing authentication in Devolutions Server CVSS 3.1CRITICAL 9.8
- TI-2023-06040 Incorrect permission assignment in Devolutions Remote Desktop Manager CVSS 3.1CRITICAL 9.8
- TI-2023-04041 Improper authentication in Devolutions Remote Desktop Manager CVSS 3.1CRITICAL 9.8
- TI-2026-02702 Improper Enforcement of Behavioral Controls in Devolutions Server 2025.3.15 and earlier… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-78417 · CVE Program
- CVE-2026-78417 · NVD
- FIRST EPSS
- GHSA-v5j9-gh53-cfjx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences