--- id: CVE-2026-10805 title: A flaw was found in NetworkManager summary: >- 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 esca… severity: medium cvss: 6.7 cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H' cwe: - CWE-78 vendor: Red Hat product: NetworkManager affected: - NetworkManager (all versions) - NetworkManager (all versions) - NetworkManager (all versions) - NetworkManager (all versions) - NetworkManager (all versions) - NetworkManager (all versions) - NetworkManager (all versions) - NetworkManager (all versions) - NetworkManager (all versions) - NetworkManager (all versions) - NetworkManager (all versions) - NetworkManager (all versions) - NetworkManager (all versions) - multicluster-engine/cluster-api-provider-aws-rhel9 (all versions) - mobile-broadband-provider-info (all versions) - NetworkManager (all versions) - network-manager-applet (all versions) - NetworkManager-libreswan (all versions) - NetworkManager (all versions) - NetworkManager-openswan (all versions) - NetworkManager (all versions) - NetworkManager-libreswan (all versions) - NetworkManager-libreswan (all versions) - mobile-broadband-provider-info (all versions) - network-manager-applet (all versions) - NetworkManager-libreswan (all versions) - NetworkManager - networkmanager (all versions) - NetworkManager (all versions) - openshift4/kubernetes-nmstate-rhel8-operator (all versions) - openshift4/kubernetes-nmstate-rhel9-operator (all versions) - openshift4/ose-aws-cluster-api-controllers-rhel8 (all versions) - openshift4/ose-aws-cluster-api-controllers-rhel9 (all versions) - openshift4/ose-kubernetes-nmstate-handler-rhel8 (all versions) - openshift4/ose-kubernetes-nmstate-handler-rhel9 (all versions) - openshift4/ose-ovn-kubernetes-microshift-rhel9 (all versions) - openshift4/ose-ovn-kubernetes-rhel9 (all versions) - redhat-user-workloads/art-images (all versions) patched: - enterprise_linux_appstream_v_8 - enterprise_linux_appstream_aus_v_8_4 - enterprise_linux_appstream_eus_extension_v_8_4 - enterprise_linux_appstream_aus_v_8_6 - enterprise_linux_appstream_eus_extension_v_8_6 - enterprise_linux_appstream_e4s_v_8_8 - enterprise_linux_appstream_tus_v_8_8 - enterprise_linux_appstream_e4s_v_9_2 - enterprise_linux_appstream_e4s_v_9_4 - enterprise_linux_appstream_eus_v_9_6 - enterprise_linux_appstream_v_9 - enterprise_linux_baseos_v_8 - enterprise_linux_baseos_aus_v_8_4 - enterprise_linux_baseos_eus_extension_v_8_4 - enterprise_linux_baseos_aus_v_8_6 - enterprise_linux_baseos_eus_extension_v_8_6 - enterprise_linux_baseos_e4s_v_8_8 - enterprise_linux_baseos_tus_v_8_8 - enterprise_linux_baseos_e4s_v_9_2 - enterprise_linux_baseos_e4s_v_9_4 - enterprise_linux_baseos_eus_v_9_6 - enterprise_linux_baseos_v_9 - enterprise_linux_crb_v_8 - codeready_linux_builder_eus_v_9_6 - enterprise_linux_codeready_linux_builder_v_9 published: '2026-06-04' updated: '2026-09-25' sourceUpdated: '2026-09-25T02:16:54.313' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-10805' references: - url: 'https://access.redhat.com/errata/RHSA-2026:58555' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:58572' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:61239' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:61243' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:61244' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:61341' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:61572' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:61580' label: secalert@redhat.com - url: 'https://access.redhat.com/security/cve/CVE-2026-10805' label: secalert@redhat.com - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2484613' label: secalert@redhat.com - url: >- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10805.json - url: 'https://www.cve.org/CVERecord?id=CVE-2026-10805' - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-10805' tags: - nvd - cve.org - csaf - vex - red-hat epss: 0.0017 epssPercentile: 0.05568 ssvc: exploitation: none automatable: 'no' technicalImpact: total timestamp: '2026-06-04T12:38:00.972683Z' ingestedAt: '2026-08-24T10:01:25.871Z' --- ## Overview 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. ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges. ## Vendor advisories - **RHSA-2026:58555** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2026-08-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:58555) - **RHSA-2026:61239** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4), Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) · released 2026-08-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:61239) - **RHSA-2026:61580** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6), Red Hat Enterprise Linux BaseOS AUS (v.8.6), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) · released 2026-08-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:61580) - **RHSA-2026:61572** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8), Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8) · released 2026-08-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:61572) - **RHSA-2026:61244** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.9.2) · released 2026-08-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:61244) - **RHSA-2026:61243** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux BaseOS E4S (v.9.4) · released 2026-08-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:61243) - **RHSA-2026:61341** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6), Red Hat CodeReady Linux Builder EUS (v.9.6) · released 2026-08-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:61341) - **RHSA-2026:58572** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) · released 2026-08-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:58572) - **Red Hat VEX** · Moderate · affected: Multicluster Engine for Kubernetes, Red Hat JBoss Enterprise Application Platform Expansion Pack, Red Hat OpenShift Container Platform 4 · no fix planned: Multicluster Engine for Kubernetes, Red Hat JBoss Enterprise Application Platform Expansion Pack, Red Hat OpenShift Container Platform 4 · updated 2026-09-25 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10805.json)