Local privilege escalation via dhclient configuration injection
Published Jun 4, 2026 · Updated Jun 4, 2026
Command injection in NetworkManager's dhclient backend allows local users to gain root privileges through a crafted MUD URL. The backend writes an unvalidated Manufacturer Usage Description URL into the dhclient configuration, allowing syntax-changing characters to trigger a privileged script. Exploitation requires low-privileged local access, user interaction, and an administrator-selected dhclient backend; default configurations are unaffected.
Summary
What happened
Command injection in NetworkManager's dhclient backend allows local users to gain root privileges through a crafted MUD URL. The backend writes an unvalidated Manufacturer Usage Description URL into the dhclient configuration, allowing syntax-changing characters to trigger a privileged script. Exploitation requires low-privileged local access, user interaction, and an administrator-selected dhclient backend; default configurations are unaffected.
The record
- CVE
- CVE-2026-10805
- Published
- Jun 4, 2026
- Updated
- Jun 4, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat JBoss Enterprise Application Platform Expansion Pack
- Classifications
- CWE-78, T1059.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 4, 2026CVE publishedPublication date reported by the CVE source.
- Jun 4, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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