A flaw was found in NetworkManager. This local privilege escalation vulnerability exists in NetworkManager's dhclient backend when processing malformed Manufacturer Usage Description (MUD) URLs. A local user can exploit this flaw to escalate privileges by triggering a script via a crafted MUD URL, provided an administrator has explicitly configured NetworkManager to use dhclient. This issue does not affect default configurations of NetworkManager.

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Fixes

Solution

No solution given by the vendor.


Workaround

To prevent exploitation, ensure NetworkManager is not configured to use the `dhclient` backend. The default configuration on Red Hat Enterprise Linux does not enable `dhclient`. If a custom configuration file, such as `/etc/NetworkManager/conf.d/00-dhcp.conf`, contains `[main] dhcp=dhclient`, remove or comment out this line. After modifying the configuration, restart the NetworkManager service: `sudo systemctl restart NetworkManager` Warning: Restarting the NetworkManager service will temporarily disrupt network connectivity.

History

Thu, 04 Jun 2026 05:30:00 +0000

Type Values Removed Values Added
Description A flaw was found in NetworkManager. This local privilege escalation vulnerability exists in NetworkManager's dhclient backend when processing malformed Manufacturer Usage Description (MUD) URLs. A local user can exploit this flaw to escalate privileges by triggering a script via a crafted MUD URL, provided an administrator has explicitly configured NetworkManager to use dhclient. This issue does not affect default configurations of NetworkManager.
Title Networkmanager: networkmanager: local privilege escalation via malformed mud urls in dhclient backend
First Time appeared Redhat
Redhat enterprise Linux
Redhat jbosseapxp
Redhat multicluster Engine
Redhat openshift
Weaknesses CWE-78
CPEs cpe:/a:redhat:jbosseapxp
cpe:/a:redhat:multicluster_engine
cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat jbosseapxp
Redhat multicluster Engine
Redhat openshift
References
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-06-04T05:21:34.080Z

Reserved: 2026-06-04T05:10:00.738Z

Link: CVE-2026-10805

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-04T06:16:21.780

Modified: 2026-06-04T06:16:21.780

Link: CVE-2026-10805

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-04T06:30:07Z

Weaknesses