D-Bus Vulnerability Allows Local Attackers to Cause Denial of Service
CVE-2026-128885

5.5MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Vendor
CVE Published:
13 November 2026

What is CVE-2026-128885?

A flaw in the D-Bus event monitoring configuration allows a local attacker to exploit the system by opening numerous concurrent connections, which can lead to a stack overflow due to an unverified file descriptor count. If the daemon uses the Unix select() mechanism without proper checks, it may crash, resulting in a Denial of Service condition. This vulnerability emphasizes the need for attentive security practices and regular updates to safeguard against potential attacks.

References

https://access.redhat.com/security/cve/CVE-2026-128885
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2462795
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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