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Fencer Intel
medium 6.7

CVE-2026-10805 json

Networkmanager: networkmanager: local privilege escalation via malformed mud urls in dhclient backend

published 5mo ago modified 4d ago also EUVD-2026-34207

cvss
6.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits
0
none known

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 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.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 8 1:1.40.16-21.el8_10
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 1:1.30.0-19.el8_4.1
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 1:1.30.0-19.el8_4.1
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 1:1.36.0-18.el8_6.1
  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 1:1.36.0-18.el8_6.1
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 1:1.40.16-10.el8_8.1
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 1:1.40.16-10.el8_8.1
  • Red Hat Red Hat Enterprise Linux 9 1:1.54.3-5.el9_8
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 1:1.42.2-32.el9_2.1
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 1:1.46.0-38.el9_4.1
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 1:1.52.0-11.el9_6.1
  • network-manager Debian 14 1.58.0-2

debian advisories DEBIAN-CVE-2026-10805

  • NetworkManager RHEL 9 1:1.54.3-5.el9_8
  • NetworkManager-ovs RHEL 9 1:1.54.3-5.el9_8
  • NetworkManager-ppp RHEL 9 1:1.54.3-5.el9_8
  • NetworkManager-tui RHEL 9 1:1.54.3-5.el9_8
  • NetworkManager-adsl RHEL 9 1:1.54.3-5.el9_8
  • NetworkManager-team RHEL 9 1:1.54.3-5.el9_8
  • NetworkManager-wifi RHEL 9 1:1.54.3-5.el9_8
  • NetworkManager-wwan RHEL 9 1:1.54.3-5.el9_8

red hat advisories RHSA-2026:61580RHSA-2026:61572RHSA-2026:61341RHSA-2026:61244RHSA-2026:61243RHSA-2026:61239

  • NetworkManager SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Workstation Extension 15 SP7 +2 more 1.44.2-150600.3.10.1
  • NetworkManager SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +1 more 1.32.12-150400.3.6.1
  • NetworkManager Linux Micro 6.0 1.42.6-9.1
  • NetworkManager Linux Micro 6.1 1.42.6-slfo.1.1_5.1
  • NetworkManager SLE Micro 5.3 1.38.2-150400.3.8.1
  • NetworkManager SLE Micro 5.4 1.38.2-150400.3.9.1
  • NetworkManager SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 1.38.6-150500.3.10.1
  • NetworkManager SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 1.52.0-160000.5.1

suse advisories SUSE-SU-2026:4181-1SUSE-SU-2026:4148-1SUSE-SU-2026:4144-1SUSE-SU-2026:23475-1SUSE-SU-2026:23525-1SUSE-SU-2026:4067-1

  • NetworkManager openSUSE Tumbleweed 1.56.1-4.1
  • NetworkManager openSUSE Leap 16.0 1.52.0-160000.5.1

opensuse advisories openSUSE-SU-2026:11693-1openSUSE-SU-2026:21776-1

  • NetworkManager AlmaLinux 8 1:1.40.16-21.el8_10
  • NetworkManager-ovs AlmaLinux 8 1:1.40.16-21.el8_10
  • NetworkManager-ppp AlmaLinux 8 1:1.40.16-21.el8_10
  • NetworkManager-tui AlmaLinux 8 1:1.40.16-21.el8_10
  • NetworkManager-adsl AlmaLinux 8 1:1.40.16-21.el8_10
  • NetworkManager-team AlmaLinux 8 1:1.40.16-21.el8_10
  • NetworkManager-wifi AlmaLinux 8 1:1.40.16-21.el8_10
  • NetworkManager-wwan AlmaLinux 8 1:1.40.16-21.el8_10

almalinux advisories ALSA-2026:58555ALSA-2026:58572

  • NetworkManager Rocky Linux 9 1:1.54.3-5.el9_8
  • NetworkManager Rocky Linux 8 1:1.40.16-21.el8_10

rocky linux advisories RLSA-2026:58572RLSA-2026:58555

Is CVE-2026-10805 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-10805 updated cvss 6.7

NetworkManager: NetworkManager: Local privilege escalation via malformed MUD URLs in dhclient backend

  • Red Hat Multicluster Engine for Kubernetes multicluster-engine/cluster-api-provider-aws-rhel9 Red Hat JBoss Enterprise Application Platform Expansion Pack networkmanager Red Hat OpenShift Container Platform 4 NetworkManager, NetworkManager-ovs, NetworkManager-ppp, NetworkManager-tui, NetworkManager-adsl, NetworkManager-team, +18 more Red Hat OpenShift Container Platform 5 openshift5/ose-ovn-kubernetes-rhel9, openshift5/ose-ovn-kubernetes-microshift-rhel9, openshift5/ose-aws-cluster-api-controllers-rhel9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat CodeReady Linux Builder EUS (v.9.6) NetworkManager-debuginfo 1.52.0-11.el9_6.1, NetworkManager-debugsource 1.52.0-11.el9_6.1, NetworkManager-libnm-devel 1.52.0-11.el9_6.1, NetworkManager-ovs-debuginfo 1.52.0-11.el9_6.1, NetworkManager-ppp-debuginfo 1.52.0-11.el9_6.1, NetworkManager-tui-debuginfo 1.52.0-11.el9_6.1, +7 more
    fixed: vendor fix RHSA-2026:61341
  • Red Hat Enterprise Linux AppStream (v. 8) NetworkManager-cloud-setup 1.40.16-21.el8_10
    fixed: vendor fix RHSA-2026:58555
  • Red Hat Enterprise Linux AppStream (v. 9) NetworkManager-ovs 1.54.3-5.el9_8, NetworkManager-ppp 1.54.3-5.el9_8, NetworkManager-cloud-setup 1.54.3-5.el9_8, NetworkManager-dispatcher-routing-rules 1.54.3-5.el9_8, NetworkManager-config-connectivity-redhat 1.54.3-5.el9_8
    fixed: vendor fix RHSA-2026:58572
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) NetworkManager-cloud-setup 1.30.0-19.el8_4.1
    fixed: vendor fix RHSA-2026:61239
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) NetworkManager-cloud-setup 1.36.0-18.el8_6.1
    fixed: vendor fix RHSA-2026:61580
  • Red Hat Enterprise Linux AppStream E4S (v.8.8) NetworkManager-cloud-setup 1.40.16-10.el8_8.1
    fixed: vendor fix RHSA-2026:61572
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) NetworkManager-ovs 1.42.2-32.el9_2.1, NetworkManager-ppp 1.42.2-32.el9_2.1, NetworkManager-cloud-setup 1.42.2-32.el9_2.1, NetworkManager-dispatcher-routing-rules 1.42.2-32.el9_2.1, NetworkManager-config-connectivity-redhat 1.42.2-32.el9_2.1
    fixed: vendor fix RHSA-2026:61244
show 20 more
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) NetworkManager-ovs 1.46.0-38.el9_4.1, NetworkManager-ppp 1.46.0-38.el9_4.1, NetworkManager-cloud-setup 1.46.0-38.el9_4.1, NetworkManager-dispatcher-routing-rules 1.46.0-38.el9_4.1, NetworkManager-config-connectivity-redhat 1.46.0-38.el9_4.1
    fixed: vendor fix RHSA-2026:61243
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) NetworkManager-ovs 1.52.0-11.el9_6.1, NetworkManager-ppp 1.52.0-11.el9_6.1, NetworkManager-cloud-setup 1.52.0-11.el9_6.1, NetworkManager-dispatcher-routing-rules 1.52.0-11.el9_6.1, NetworkManager-config-connectivity-redhat 1.52.0-11.el9_6.1
    fixed: vendor fix RHSA-2026:61341
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) NetworkManager-cloud-setup 1.30.0-19.el8_4.1
    fixed: vendor fix RHSA-2026:61239
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) NetworkManager-cloud-setup 1.36.0-18.el8_6.1
    fixed: vendor fix RHSA-2026:61580
  • Red Hat Enterprise Linux AppStream TUS (v.8.8) NetworkManager-cloud-setup 1.40.16-10.el8_8.1
    fixed: vendor fix RHSA-2026:61572
  • Red Hat Enterprise Linux BaseOS (v. 8) NetworkManager 1.40.16-21.el8_10, NetworkManager-ovs 1.40.16-21.el8_10, NetworkManager-ppp 1.40.16-21.el8_10, NetworkManager-tui 1.40.16-21.el8_10, NetworkManager-adsl 1.40.16-21.el8_10, NetworkManager-team 1.40.16-21.el8_10, +8 more
    fixed: vendor fix RHSA-2026:58555
  • Red Hat Enterprise Linux BaseOS (v. 9) NetworkManager 1.54.3-5.el9_8, NetworkManager-tui 1.54.3-5.el9_8, NetworkManager-adsl 1.54.3-5.el9_8, NetworkManager-team 1.54.3-5.el9_8, NetworkManager-wifi 1.54.3-5.el9_8, NetworkManager-wwan 1.54.3-5.el9_8, +4 more
    fixed: vendor fix RHSA-2026:58572
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) NetworkManager 1.30.0-19.el8_4.1, NetworkManager-ovs 1.30.0-19.el8_4.1, NetworkManager-ppp 1.30.0-19.el8_4.1, NetworkManager-tui 1.30.0-19.el8_4.1, NetworkManager-adsl 1.30.0-19.el8_4.1, NetworkManager-team 1.30.0-19.el8_4.1, +7 more
    fixed: vendor fix RHSA-2026:61239
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) NetworkManager 1.36.0-18.el8_6.1, NetworkManager-ovs 1.36.0-18.el8_6.1, NetworkManager-ppp 1.36.0-18.el8_6.1, NetworkManager-tui 1.36.0-18.el8_6.1, NetworkManager-adsl 1.36.0-18.el8_6.1, NetworkManager-team 1.36.0-18.el8_6.1, +8 more
    fixed: vendor fix RHSA-2026:61580
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) NetworkManager 1.40.16-10.el8_8.1, NetworkManager-ovs 1.40.16-10.el8_8.1, NetworkManager-ppp 1.40.16-10.el8_8.1, NetworkManager-tui 1.40.16-10.el8_8.1, NetworkManager-adsl 1.40.16-10.el8_8.1, NetworkManager-team 1.40.16-10.el8_8.1, +8 more
    fixed: vendor fix RHSA-2026:61572
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) NetworkManager 1.42.2-32.el9_2.1, NetworkManager-tui 1.42.2-32.el9_2.1, NetworkManager-adsl 1.42.2-32.el9_2.1, NetworkManager-team 1.42.2-32.el9_2.1, NetworkManager-wifi 1.42.2-32.el9_2.1, NetworkManager-wwan 1.42.2-32.el9_2.1, +4 more
    fixed: vendor fix RHSA-2026:61244
  • Red Hat Enterprise Linux BaseOS E4S (v.9.4) NetworkManager 1.46.0-38.el9_4.1, NetworkManager-tui 1.46.0-38.el9_4.1, NetworkManager-adsl 1.46.0-38.el9_4.1, NetworkManager-team 1.46.0-38.el9_4.1, NetworkManager-wifi 1.46.0-38.el9_4.1, NetworkManager-wwan 1.46.0-38.el9_4.1, +4 more
    fixed: vendor fix RHSA-2026:61243
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) NetworkManager 1.52.0-11.el9_6.1, NetworkManager-tui 1.52.0-11.el9_6.1, NetworkManager-adsl 1.52.0-11.el9_6.1, NetworkManager-team 1.52.0-11.el9_6.1, NetworkManager-wifi 1.52.0-11.el9_6.1, NetworkManager-wwan 1.52.0-11.el9_6.1, +4 more
    fixed: vendor fix RHSA-2026:61341
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) NetworkManager 1.30.0-19.el8_4.1, NetworkManager-ovs 1.30.0-19.el8_4.1, NetworkManager-ppp 1.30.0-19.el8_4.1, NetworkManager-tui 1.30.0-19.el8_4.1, NetworkManager-adsl 1.30.0-19.el8_4.1, NetworkManager-team 1.30.0-19.el8_4.1, +7 more
    fixed: vendor fix RHSA-2026:61239
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) NetworkManager 1.36.0-18.el8_6.1, NetworkManager-ovs 1.36.0-18.el8_6.1, NetworkManager-ppp 1.36.0-18.el8_6.1, NetworkManager-tui 1.36.0-18.el8_6.1, NetworkManager-adsl 1.36.0-18.el8_6.1, NetworkManager-team 1.36.0-18.el8_6.1, +8 more
    fixed: vendor fix RHSA-2026:61580
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) NetworkManager 1.40.16-10.el8_8.1, NetworkManager-ovs 1.40.16-10.el8_8.1, NetworkManager-ppp 1.40.16-10.el8_8.1, NetworkManager-tui 1.40.16-10.el8_8.1, NetworkManager-adsl 1.40.16-10.el8_8.1, NetworkManager-team 1.40.16-10.el8_8.1, +8 more
    fixed: vendor fix RHSA-2026:61572
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) NetworkManager-debuginfo 1.54.3-5.el9_8, NetworkManager-debugsource 1.54.3-5.el9_8, NetworkManager-libnm-devel 1.54.3-5.el9_8, NetworkManager-ovs-debuginfo 1.54.3-5.el9_8, NetworkManager-ppp-debuginfo 1.54.3-5.el9_8, NetworkManager-tui-debuginfo 1.54.3-5.el9_8, +7 more
    fixed: vendor fix RHSA-2026:58572
  • Red Hat Enterprise Linux CRB (v. 8) NetworkManager-debuginfo 1.40.16-21.el8_10, NetworkManager-debugsource 1.40.16-21.el8_10, NetworkManager-libnm-devel 1.40.16-21.el8_10, NetworkManager-ovs-debuginfo 1.40.16-21.el8_10, NetworkManager-ppp-debuginfo 1.40.16-21.el8_10, NetworkManager-tui-debuginfo 1.40.16-21.el8_10, +7 more
    fixed: vendor fix RHSA-2026:58555
  • Red Hat Enterprise Linux 6 NetworkManager, NetworkManager-glib, NetworkManager-gnome Red Hat Enterprise Linux 7 NetworkManager, NetworkManager-ovs, NetworkManager-ppp, NetworkManager-tui, NetworkManager-adsl, NetworkManager-glib, +8 more Red Hat Enterprise Linux 10 NetworkManager
    not affected: vulnerable code not present
  • Red Hat Hardened Images NetworkManager
    not affected: component not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
5mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 6.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected products

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

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.