CVE-2026-40225

In udev in systemd before 260, local root execution can occur via malicious hardware devices and unsanitized kernel output.

Published: 2026-04-10 Last update: 2026-04-27 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-40225 is rated Low Risk (27.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.02%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-40225

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-11 — 0.02% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-40225

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 3.1 MEDIUM
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.5 5.9 [email protected]

Weakness enumeration for CVE-2026-40225

OS Trackers for CVE-2026-40225

vendor priority summary link
debian not yet assigned CVE-2026-40225 not yet assigned priority: Debian including 1 source packages (systemd), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2026-40225
redhat medium — https://access.redhat.com/security/cve/CVE-2026-40225
ubuntu medium CVE-2026-40225 medium priority: Ubuntu including 1 source packages (systemd), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): needs-triage 7, released 1. https://ubuntu.com/security/CVE-2026-40225

Affected software / configurations for CVE-2026-40225

Vendor Product Version Raw CPE
systemd_project systemd < 257.13 cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*
systemd_project systemd >= 258, < 258.7 cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*
systemd_project systemd >= 259, < 259.5 cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*

References for CVE-2026-40225

cvelogic Threat Intelligence