Generated remediation guidance and an executive summary. No account required.
An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when many entries are sent to the journal socket. A local attacker, or a remote one if systemd-journal-remote is used, may use this flaw to crash systemd-journald or execute code with journald privileges. Versions through v240 are vulnerable.
Cite this page
CVE-2018-16865. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2018-16865
Use CWE-770, Systemd Project vendor hub and Systemd product page to widen CVE-2018-16865 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-40224, CVE-2026-40226 and CVE-2026-40225 for nearby disclosures in the same product family.