What is CVE-2026-39959?

CVE-2026-39959 is a high-severity vulnerability in Tmds Tmds.dbus, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.1/10. Published 2026-04-09.

How severe is CVE-2026-39959?

High severity. CVSS v3 base score is 7.1 out of 10.

Resource exhaustion in Tmds Tmds.dbus

CVE-2026-39959

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…

EPSS: 0.000 (0.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

Affected products

Tmds Tmds.dbus — versions < 0.92.0
Tmds Tmds.dbus.protocol — versions < 0.21.3, >= 0.22.0, < 0.92.0

Weakness classification (CWE)

References

https://github.com/tmds/Tmds.DBus/security/advisories/GHSA-xrw6-gwf8-vvr9 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-39959?: CVE-2026-39959 is a high-severity vulnerability in Tmds Tmds.dbus, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.1/10. Published 2026-04-09.
How severe is CVE-2026-39959?: High severity. CVSS v3 base score is 7.1 out of 10.