EUVD-2026-21400
GHSA-hc7r-6254-88w5
6.4
CVSS 3.1
Share
CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
3
Analysis Generated
Apr 10, 2026 - 16:00 vuln.today
EUVD ID Assigned
Apr 10, 2026 - 16:00 euvd
EUVD-2026-21400
CVE Published
Apr 10, 2026 - 15:18 nvd
MEDIUM 6.4
Description
In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file.
Analysis
Escape-to-host vulnerability in systemd nspawn (versions 233-259) allows local privileged users to break container isolation via a crafted optional config file, enabling arbitrary code execution on the host system. CVSS 6.4 reflects high integrity and confidentiality impact but requires high privilege and difficult attack conditions. …
Sign in for full analysis, threat intelligence, and remediation guidance.
Priority Score
32
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: 0
Share
External POC / Exploit Code
Leaving vuln.today
Destination URL
POC code from unknown sources may be malicious, contain backdoors, or be fake.
Always review and test exploit code in a safe, isolated environment (VM/sandbox).
Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).