CVE-2026-10805: Networkmanager: networkmanager: local privilege escalation via malformed mud urls in dhclient backend
Vulnerability summary
CVE-2026-10805 is a medium (CVSS 6.7) vulnerability in network-manager. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.3% of scored vulnerabilities.
Not severe (CVSS 6.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 13 · Related 13Timeline
- 04-06-2026PublishedVulnerability first disclosed.
- 25-09-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · Red hatEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- NVDNIST6.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.17% on 05-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat28 products
- NetworkManager< 1:1.30.0-19.el8_4.1 | < 1:1.46.0-38.el9_4.1 | < 1:1.42.2-32.el9_2.1 | < 1:1.52.0-11.el9_6.1 | < 1:1.40.16-10.el8_8.1 | < 1:1.36.0-18.el8_6.1 | < 1:1.40.16-21.el8_10 | < 1:1.54.3-5.el9_8
- NetworkManager-adsl< 1:1.30.0-19.el8_4.1 | < 1:1.46.0-38.el9_4.1 | < 1:1.42.2-32.el9_2.1 | < 1:1.52.0-11.el9_6.1 | < 1:1.40.16-10.el8_8.1 | < 1:1.36.0-18.el8_6.1 | < 1:1.40.16-21.el8_10 | < 1:1.54.3-5.el9_8
- NetworkManager-adsl-debuginfo< 1:1.30.0-19.el8_4.1 | < 1:1.46.0-38.el9_4.1 | < 1:1.42.2-32.el9_2.1 | < 1:1.52.0-11.el9_6.1 | < 1:1.40.16-10.el8_8.1 | < 1:1.36.0-18.el8_6.1 | < 1:1.40.16-21.el8_10 | < 1:1.54.3-5.el9_8
- NetworkManager-bluetooth< 1:1.30.0-19.el8_4.1 | < 1:1.46.0-38.el9_4.1 | < 1:1.42.2-32.el9_2.1 | < 1:1.52.0-11.el9_6.1 | < 1:1.40.16-10.el8_8.1 | < 1:1.36.0-18.el8_6.1 | < 1:1.40.16-21.el8_10 | < 1:1.54.3-5.el9_8
- NetworkManager-bluetooth-debuginfo< 1:1.30.0-19.el8_4.1 | < 1:1.46.0-38.el9_4.1 | < 1:1.42.2-32.el9_2.1 | < 1:1.52.0-11.el9_6.1 | < 1:1.40.16-10.el8_8.1 | < 1:1.36.0-18.el8_6.1 | < 1:1.40.16-21.el8_10 | < 1:1.54.3-5.el9_8
Debian1 product
- network-managerAll versions (No fix recorded) | < 1.58.0-2
Ubuntu1 product
- network-managerAll versions (No fix recorded)
3 vendors · 30 products