systemd: Local unprivileged user can trigger an assert (systemd systemd)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.13 % · percentile 2 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-269 — Improper Privilege Management
References
- https://github.com/systemd/systemd/security/advisories/GHSA-gx6q-6f99-m764
- https://github.com/systemd/systemd/commit/1d22f706bd04f45f8422e17fbde3f56ece17758a
- https://github.com/systemd/systemd/commit/20021e7686426052e3a7505425d7e12085feb2a6
- https://github.com/systemd/systemd/commit/21167006574d6b83813c7596759b474f56562412
- https://github.com/systemd/systemd/commit/3cee294fe8cf4fa0eff933ab21416d099942cabd
- https://github.com/systemd/systemd/commit/42aee39107fbdd7db1ccd402a2151822b2805e9f
- https://github.com/systemd/systemd/commit/54588d2dedff54bfb6036670820650e4ea74628f
- https://github.com/systemd/systemd/commit/7ac3220213690e8a8d6d2a6e81e43bd1dce01d69
- https://github.com/systemd/systemd/commit/80acea4ef80a4bb78560ed970c34952299b890d6
- https://github.com/systemd/systemd/commit/b5fd14693057e5f2c9b4a49603be64ec3608ff6c
- https://github.com/systemd/systemd/commit/efa6ba2ab625aaa160ac435a09e6482fc63bdbe8
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · security-advisories@github.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-14562
- GCVE · GCVE-0-2026-29111
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0386 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0371 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*≥ 239 < 257.11cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*≥ 258 < 258.5cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*≥ 259 < 259.2
Affected products
| Product | Versions |
|---|---|
| systemd · systemd | affected >= 239, < 257.11 ; affected >= 258, < 258.5 ; affected >= 259, < 259.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |