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Vulnerability · Published Jun 4, 2026 · Assigned by redhat

CVE-2026-10805Networkmanager: networkmanager: local privilege escalation via malformed mud urls in dhclient backend

Medium 6.7

In plain English

A medium-severity OS command injection in Multicluster Engine for Kubernetes from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.7Medium
Exploit odds (30 days)0.2%top 93.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8NetworkManager1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-adsl1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-adsl1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-bluetooth1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-bluetooth1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-cloud-setup1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-cloud-setup1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-config-connectivity-redhat1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-config-connectivity-redhat1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-config-server1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-config-server1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-dispatcher-routing-rules1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-dispatcher-routing-rules1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-initscripts-updown1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-initscripts-updown1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-libnm1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-libnm1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-libnm-devel1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-libnm-devel1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-ovs1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-ovs1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-ppp1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-ppp1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-team1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-team1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-tui1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-tui1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-wifi1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-wifi1:1.54.3-5.el9_8ALSA-2026:58572
AlmaLinux:8NetworkManager-wwan1:1.40.16-21.el8_10ALSA-2026:58555
AlmaLinux:9NetworkManager-wwan1:1.54.3-5.el9_8ALSA-2026:58572
Debian:12network-managerno fix listedDEBIAN-CVE-2026-10805
Debian:13network-managerno fix listedDEBIAN-CVE-2026-10805
Debian:14network-manager1.58.0-2DEBIAN-CVE-2026-10805
Rocky Linux:8NetworkManager1:1.40.16-21.el8_10RLSA-2026:58555
Rocky Linux:9NetworkManager1:1.54.3-5.el9_8RLSA-2026:58572
Ubuntu:22.04:LTSnetwork-managerno fix listedUBUNTU-CVE-2026-10805
Ubuntu:24.04:LTSnetwork-managerno fix listedUBUNTU-CVE-2026-10805
Ubuntu:25.10network-managerno fix listedUBUNTU-CVE-2026-10805
Ubuntu:26.04:LTSnetwork-managerno fix listedUBUNTU-CVE-2026-10805
Ubuntu:26.10network-managerno fix listedUBUNTU-CVE-2026-10805

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support see references
Red Hat Multicluster Engine for Kubernetes see references
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Hardened Images see references
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 5 see references

Weakness: CWE-78 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

References