{"cve":"CVE-2026-29111","nvd":{"published":"2026-03-23T22:16:26.267","modified":"2026-06-17T10:29:37.060","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-269"],"references":["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"],"products":["systemd_project:systemd"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-29111","score":0.00126,"percentile":0.02259,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}