SEPTEMBER 19, 2026
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Case File

CVE-2026-63409

HIGH · CVSS 8.2 EPSS 0.32% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-17 · Last synced 2026-09-16

CyberRota Analysis

AI-Generated

Deskflow versions from 1.17.0 to 1.26.0.295 are vulnerable to a denial-of-service attack due to improper handling of DSOP vectors, which can lead to a crash of the connected client. This vulnerability allows a malicious server to exploit the application, potentially disrupting user operations. Organizations using affected versions should prioritize updating to continuous build 1.26.0.296 to mitigate this high-severity risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-63409
Severity
HIGH
CVSS
8.2
EPSS
0.32%

Original NVD Description

Deskflow is a keyboard and mouse sharing app. From 1.17.0 until continuous build 1.26.0.296, a malicious Deskflow server can send an odd-length DSOP vector to ServerProxy::setOptions() in src/lib/client/ServerProxy.cpp, causing the missing value after the final option key to be read beyond the vector during the PacketStreamFilter::filterEvent to ServerProxy::handleData() to ServerProxy::parseHandshakeMessage() call chain and crash the connected client. This issue is fixed in continuous build 1.26.0.296.