CVE-2026-16730
🔶 mediumSummary
A flaw was found in dbus-broker. When the process file-descriptor limit is reached, EMFILE/ENFILE errors during peer setup (notably SO_PEERPIDFD) are handled as fatal failures, causing the broker to exit. A local attacker who can open many connections to the user session bus can trigger this and deny service to the desktop session. Flatpak applications can reach the host session bus through the dbus proxy.
CVSS Score
5.5
Medium
EPSS Score
0.1
Exploit Probability
Published Date
2026-07-24
First Seen: 2026-07-31
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 32.1% of all 340,620 vulnerabilities in our database.
#231,164
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Jul 24, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
Red Hat would like to thank Josh Simmons for reporting this issue.
SSVC data provided by
CISA
Last Modified
2026-07-24
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE IDs (Weakness Types)