| Name | CVE-2026-10805 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1139285 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| network-manager (PTS) | bullseye | 1.30.6-1+deb11u1 | vulnerable |
| bookworm | 1.42.4-1+deb12u1 | vulnerable |
| trixie | 1.52.1-1 | vulnerable |
| forky, sid | 1.56.1-1 | vulnerable |
The information below is based on the following data on fixed versions.
Notes
[trixie] - network-manager <ignored> (Minor issue)
[bookworm] - network-manager <ignored> (Minor issue)
[bullseye] - network-manager <ignored> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2484613
Network-manager defaults to the internal DHCP client