CVE-2026-63409

Summary

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.

Affected Software

VendorProductVersion RangeStatus
deskflowdeskflow>= 1.17.0, < 1.26.0.296affected

Weaknesses

  • CWE-125: CWE-125: Out-of-bounds Read

References