Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-10805

CVE-2026-10805MEDIUM

Red Hat Red Hat Enterprise Linux 8 — Networkmanager: networkmanager: local privilege escalation via malformed mud urls in dhclient backend

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   H   L   R  U  H  H  H    6.7   .0017    5.7     —

AFFECTED
  Product                                                                Versions     Fixed
  Red Hat Enterprise Linux 8                                             unspecified  1:1.40.16-21.el8_10
  Red Hat Enterprise Linux 8                                             unspecified  1:1.40.16-21.el8_10
  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support  unspecified  1:1.30.0-19.el8_4.1
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On  unspecified  1:1.30.0-19.el8_4.1
  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support  unspecified  1:1.36.0-18.el8_6.1
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On  unspecified  1:1.36.0-18.el8_6.1
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service         unspecified  1:1.40.16-10.el8_8.1
  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions         unspecified  1:1.40.16-10.el8_8.1
  Red Hat Enterprise Linux 9                                             unspecified  1:1.54.3-5.el9_8
  Red Hat Enterprise Linux 9                                             unspecified  1:1.54.3-5.el9_8
  + 19 more

TIMELINE
  Jun 4   Reserved by redhat
  Jun 4   Published (CNA: redhat)
  Aug 23  PATCH SHIPPED — CVE-2026-10805 (Red Hat Enterprise Linux 8). Fixed in Red Hat Enterprise Linux 8 1:1.40.16-21.el8_10.

CWE-78 · CNA: redhat · CVSS v3.1 · 10 references · NVD status: Awaiting Analysis

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 4, 2026	Reserved	Reserved by redhat
June 4, 2026	Published	Published (CNA: redhat)
August 23, 2026	PATCH SHIPPED	PATCH SHIPPED — CVE-2026-10805 (Red Hat Enterprise Linux 8). Fixed in Red Hat Enterprise Linux 8 1:1.40.16-21.el8_10.

Affected

Affected products and packages — 29 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Red Hat	Red Hat Enterprise Linux 8	—	—	1:1.40.16-21.el8_10
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	—	—	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
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 4	—	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—	—

Weaknesses

CWE-78

References (10)

Authoritative record: CVE-2026-10805 at cve.org

Vendors: red hat

Weaknesses: CWE-78

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-10805 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.