CVE-2026-40225 Privilege escalation in systemd

What is CVE-2026-40225?

CVE-2026-40225 is a medium-severity vulnerability in Systemd Project Systemd, published on 10 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

Weakness: CWE-669

Which versions are affected by CVE-2026-40225?

It affects 1 product.

Products include Systemd Project Systemd.

How do I fix CVE-2026-40225?

Upgrade to a fixed version.

Is CVE-2026-40225 being exploited?

There is no known exploitation of CVE-2026-40225 in the wild and no public exploit code.

Other vulnerabilities in Systemd Project Systemd

• CVE-2015-7510 Memory corruption in n/a Critical 9.8
• CVE-2017-1000082 Privilege escalation in n/a Critical 9.8
• CVE-2016-10156 Privilege escalation in n/a High 7.8
• CVE-2017-9445 Memory corruption in n/a High 7.5
• CVE-2017-9217 Null dereference in n/a High 7.5

All Systemd Project Systemd vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• GitHub advisory
• How this page is made

Also known as AZL-84590, DEBIAN-CVE-2026-40225, ECHO-5372-36f1-2a63, GHSA-396h-m3pm-fpm5, GHSA-vpfq-8p5f-jcqx, OESA-2026-2548 and 2 more.