VULNERABILITY INTELLIGENCE
CVE-2026-39959
CVSS score7.1 HIGH
EPSS probability0.12%
CISA KEVNot currently listed
Published2026-04-09
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Description
Tmds.DBus provides .NET libraries for working with D-Bus from .NET. Tmds.DBus and Tmds.DBus.Protocol are vulnerable to malicious D-Bus peers. A peer on the same bus can spoof signals by impersonating the owner of a well-known name, exhaust system resources or cause file descriptor spillover by sending messages with an excessive number of Unix file descriptors, and crash the application by sending malformed message bodies that cause unhandled exceptions on the SynchronizationContext. This vulnerability is fixed in Tmds.DBus 0.92.0 and Tmds.DBus.Protocol 0.92.0 and 0.21.3.
Weakness classification
- CWE-290: Authentication Bypass by Spoofing
- CWE-770: Allocation of Resources Without Limits or Throttling