CVE-2026-78417CWE-345

CVE-2026-78417

Medium · published August 24, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
4.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00154 · 4.1th percentile
Weakness
CWE-345 · Insufficient Verification of Data Authenticity
Published
2026-08-24T23:17Z
References (1)
https://devolutions.net/security/advisories/DEVO-2026-0029/ · [email protected]
EPSS history
Timeline
  • 26 AUG 08:27Z
    EPSS moved — → 0%
    epss
  • 24 AUG 18:26Z
    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…
    cvelistv5