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CVE-2026-29111 Detail

Description

systemd, a system and service manager, (as PID 1) hits an assert and freezes execution when an unprivileged IPC API call is made with spurious data. On version v249 and older the effect is not an assert, but stack overwriting, with the attacker controlled content. From version v250 and newer this is not possible as the safety check causes an assert instead. This IPC call was added in v239, so versions older than that are not affected. Versions 260-rc1, 259.2, 258.5, and 257.11 contain patches. No known workarounds are available.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/systemd/systemd/commit/1d22f706bd04f45f8422e17fbde3f56ece17758a GitHub, Inc.
https://github.com/systemd/systemd/commit/20021e7686426052e3a7505425d7e12085feb2a6 GitHub, Inc.
https://github.com/systemd/systemd/commit/21167006574d6b83813c7596759b474f56562412 GitHub, Inc.
https://github.com/systemd/systemd/commit/3cee294fe8cf4fa0eff933ab21416d099942cabd GitHub, Inc.
https://github.com/systemd/systemd/commit/42aee39107fbdd7db1ccd402a2151822b2805e9f GitHub, Inc.
https://github.com/systemd/systemd/commit/54588d2dedff54bfb6036670820650e4ea74628f GitHub, Inc.
https://github.com/systemd/systemd/commit/7ac3220213690e8a8d6d2a6e81e43bd1dce01d69 GitHub, Inc.
https://github.com/systemd/systemd/commit/80acea4ef80a4bb78560ed970c34952299b890d6 GitHub, Inc.
https://github.com/systemd/systemd/commit/b5fd14693057e5f2c9b4a49603be64ec3608ff6c GitHub, Inc.
https://github.com/systemd/systemd/commit/efa6ba2ab625aaa160ac435a09e6482fc63bdbe8 GitHub, Inc.
https://github.com/systemd/systemd/security/advisories/GHSA-gx6q-6f99-m764 GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-269 Improper Privilege Management GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-29111
NVD Published Date:
03/23/2026
NVD Last Modified:
03/23/2026
Source:
GitHub, Inc.