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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| 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 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | network-manager | 1.58.0-2 | — |
| Debian 13 | network-manager | No fix yet | — |
| Debian 12 | network-manager | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | network-manager | No fix yet | — |
| Ubuntu 26.04 LTS | network-manager | No fix yet | — |
| Ubuntu 25.10 | network-manager | No fix yet | — |
| Ubuntu 24.04 LTS | network-manager | No fix yet | — |
| Ubuntu 22.04 LTS | network-manager | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | network-manager | No fix yet | — |
| Ubuntu 18.04 LTS | network-manager | No fix yet | — |
| Ubuntu 16.04 LTS | network-manager | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | NetworkManager +15 | 1:1.54.3-5.el9_8 | RHSA-2026:58572 |
| RHEL 8 | NetworkManager +15 | 1:1.40.16-21.el8_10 | RHSA-2026:58555 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.6 EUS | NetworkManager +15 | 1:1.52.0-11.el9_6.1 | RHSA-2026:61341 |
| RHEL 9.4 E4S | NetworkManager +14 | 1:1.46.0-38.el9_4.1 | RHSA-2026:61243 |
| RHEL 9.2 E4S | NetworkManager +14 | 1:1.42.2-32.el9_2.1 | RHSA-2026:61244 |
| RHEL 8.8 TUS | NetworkManager +14 | 1:1.40.16-10.el8_8.1 | RHSA-2026:61572 |
| RHEL 8.8 E4S | NetworkManager +14 | 1:1.40.16-10.el8_8.1 | RHSA-2026:61572 |
| RHEL 8.6 EUS Long Life | NetworkManager +14 | 1:1.36.0-18.el8_6.1 | RHSA-2026:61580 |
| RHEL 8.6 AUS | NetworkManager +14 | 1:1.36.0-18.el8_6.1 | RHSA-2026:61580 |
| RHEL 8.4 EUS Long Life | NetworkManager +13 | 1:1.30.0-19.el8_4.1 | RHSA-2026:61239 |
| RHEL 8.4 AUS | NetworkManager +13 | 1:1.30.0-19.el8_4.1 | RHSA-2026:61239 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | NetworkManager +15 | 1:1.54.3-5.el9_8 | ALSA-2026:58572 |
| AlmaLinux 8 | NetworkManager +15 | 1:1.40.16-21.el8_10 | ALSA-2026:58555 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | NetworkManager | 1:1.54.3-5.el9_8 | RLSA-2026:58572 |
| Rocky Linux 8 | NetworkManager | 1:1.40.16-21.el8_10 | RLSA-2026:58555 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | NetworkManager | 1.44.2-150600.3.10.1 | SUSE-SU-2026:4148-1 |
| SLES 15 SP6 | NetworkManager | 1.44.2-150600.3.10.1 | SUSE-SU-2026:4148-1 |
| SLES 15 SP5 | NetworkManager | 1.38.6-150500.3.10.1 | SUSE-SU-2026:4063-1 |
| SLES 15 SP4 | NetworkManager | 1.32.12-150400.3.6.1 | SUSE-SU-2026:4144-1 |
| SLES 12 SP5 | NetworkManager | 1.0.12-13.17.1 | SUSE-SU-2026:4181-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | NetworkManager | 1.52.0-160000.5.1 | SUSE-SU-2026:23656-1, SUSE-SU-2026:23639-1 |
| SLES for SAP 15 SP6 | NetworkManager | 1.44.2-150600.3.10.1 | SUSE-SU-2026:4148-1 |
| SLES for SAP 15 SP5 | NetworkManager | 1.38.6-150500.3.10.1 | SUSE-SU-2026:4063-1 |
| SLES for SAP 15 SP4 | NetworkManager | 1.32.12-150400.3.6.1 | SUSE-SU-2026:4144-1 |
| SLES 16.0 | NetworkManager | 1.52.0-160000.5.1 | SUSE-SU-2026:23656-1, SUSE-SU-2026:23639-1 |
| SLE Micro 6.2 | NetworkManager | 1.52.0-160000.5.1 | SUSE-SU-2026:23499-1 |
| SLE Micro 6.1 | NetworkManager | 1.42.6-slfo.1.1_5.1 | SUSE-SU-2026:23525-1 |
| SLE Micro 6.0 | NetworkManager | 1.42.6-9.1 | SUSE-SU-2026:23475-1 |
| SLE Micro 5.5 | NetworkManager | 1.38.6-150500.3.10.1 | SUSE-SU-2026:4063-1 |
| SLE Micro 5.4 | NetworkManager | 1.38.2-150400.3.9.1 | SUSE-SU-2026:4066-1 |
| SLE Micro 5.3 | NetworkManager | 1.38.2-150400.3.8.1 | SUSE-SU-2026:4067-1 |
| SLE HPC 15 SP5 | NetworkManager | 1.38.6-150500.3.10.1 | SUSE-SU-2026:4063-1 |
| SLE HPC 15 SP4 | NetworkManager | 1.32.12-150400.3.6.1 | SUSE-SU-2026:4144-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | NetworkManager | 1.56.1-4.1 | openSUSE-SU-2026:11693-1 |
| openSUSE Leap 16.0 | NetworkManager | 1.52.0-160000.5.1 | openSUSE-SU-2026:21776-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | NetworkManager +15 | 1:1.54.3-5.0.1.el9_8 | ELSA-2026-58572 |
| Oracle Linux 8 | NetworkManager +15 | 1:1.40.16-21.0.1.el8_10 | ELSA-2026-58555 |
Advisories 29
- WID-SEC-2026-3595 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2026
- ALSA-2026:58572 Moderate: NetworkManager security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:58555 Moderate: NetworkManager security update AlmaLinux Security Advisories · Oct 29, 2026
- SUSE-SU-2026:23656-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 29, 2026
- SUSE-SU-2026:23639-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 29, 2026
- RHSA-2026:61580 Red Hat Security Advisory: NetworkManager security update Red Hat Security Advisories (RHSA) · Sep 25, 2026
- RHSA-2026:61572 Red Hat Security Advisory: NetworkManager security update Red Hat Security Advisories (RHSA) · Sep 25, 2026
- RHSA-2026:61341 Red Hat Security Advisory: NetworkManager security update Red Hat Security Advisories (RHSA) · Sep 25, 2026
- RHSA-2026:61244 Red Hat Security Advisory: NetworkManager security update Red Hat Security Advisories (RHSA) · Sep 25, 2026
- RHSA-2026:61243 Red Hat Security Advisory: NetworkManager security update Red Hat Security Advisories (RHSA) · Sep 25, 2026
- RHSA-2026:61239 Red Hat Security Advisory: NetworkManager security update Red Hat Security Advisories (RHSA) · Sep 25, 2026
- RHSA-2026:58572 Red Hat Security Advisory: NetworkManager security update Red Hat Security Advisories (RHSA) · Sep 25, 2026
- RHSA-2026:58555 Red Hat Security Advisory: NetworkManager security update Red Hat Security Advisories (RHSA) · Sep 25, 2026
- WID-SEC-2026-2977 Red Hat Enterprise Linux (NetworkManager): Schwachstelle ermöglicht Privilegieneskalation BSI CERT-Bund (WID) · Sep 16, 2026
- SUSE-SU-2026:23525-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 15, 2026
- SUSE-SU-2026:4148-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 15, 2026
- SUSE-SU-2026:4181-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 15, 2026
- SUSE-SU-2026:4144-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 15, 2026
- SUSE-SU-2026:23475-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 14, 2026
- SUSE-SU-2026:23499-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 14, 2026
- SUSE-SU-2026:4063-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 13, 2026
- SUSE-SU-2026:4066-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 13, 2026
- SUSE-SU-2026:4067-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 13, 2026
- openSUSE-SU-2026:21776-1 Security update for NetworkManager SUSE / openSUSE Security Updates · Sep 9, 2026
- openSUSE-SU-2026:11693-1 NetworkManager-1.56.1-4.1 on GA media SUSE / openSUSE Security Updates · Sep 8, 2026
- RLSA-2026:58555 Moderate: NetworkManager security update Rocky Linux Security Advisories · Aug 24, 2026
- RLSA-2026:58572 Moderate: NetworkManager security update Rocky Linux Security Advisories · Aug 24, 2026
- ELSA-2026-58572 Moderate: NetworkManager security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 24, 2026
- ELSA-2026-58555 Moderate: NetworkManager security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 24, 2026
References
- RHSA-2026:58555 vendor-advisory
- RHSA-2026:58572 vendor-advisory
- RHSA-2026:61239 vendor-advisory
- RHSA-2026:61243 vendor-advisory
- RHSA-2026:61244 vendor-advisory
- RHSA-2026:61341 vendor-advisory
- RHSA-2026:61572 vendor-advisory
- RHSA-2026:61580 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-10805 vdb-entry
- RHBZ#2484613 issue-tracking