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CVE-2026-29111

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. N
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ee06a5ff6adeebf04ad5d54c4b26a966a9696b94d19979e4322f3265688833b9
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"systemd","vendor":"systemd","versions":[{"status":"affected","version":">= 239, < 257.11"},{"status":"affected","version":">= 258, < 258.5"},{"status":"affected","version":">= 259, < 259.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-269","description":"CWE-269: Improper Privilege Management","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/problemTypes/0/descriptions/0

Source references

11 source assertions
{"name":"https://github.com/systemd/systemd/commit/1d22f706bd04f45f8422e17fbde3f56ece17758a","tags":["x_refsource_MISC"],"url":"https://github.com/systemd/systemd/commit/1d22f706bd04f45f8422e17fbde3f56ece17758a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/references/1
{"name":"https://github.com/systemd/systemd/commit/20021e7686426052e3a7505425d7e12085feb2a6","tags":["x_refsource_MISC"],"url":"https://github.com/systemd/systemd/commit/20021e7686426052e3a7505425d7e12085feb2a6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/references/2
{"name":"https://github.com/systemd/systemd/commit/21167006574d6b83813c7596759b474f56562412","tags":["x_refsource_MISC"],"url":"https://github.com/systemd/systemd/commit/21167006574d6b83813c7596759b474f56562412"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/references/3
{"name":"https://github.com/systemd/systemd/commit/3cee294fe8cf4fa0eff933ab21416d099942cabd","tags":["x_refsource_MISC"],"url":"https://github.com/systemd/systemd/commit/3cee294fe8cf4fa0eff933ab21416d099942cabd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/references/4
{"name":"https://github.com/systemd/systemd/commit/42aee39107fbdd7db1ccd402a2151822b2805e9f","tags":["x_refsource_MISC"],"url":"https://github.com/systemd/systemd/commit/42aee39107fbdd7db1ccd402a2151822b2805e9f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/references/5
{"name":"https://github.com/systemd/systemd/commit/54588d2dedff54bfb6036670820650e4ea74628f","tags":["x_refsource_MISC"],"url":"https://github.com/systemd/systemd/commit/54588d2dedff54bfb6036670820650e4ea74628f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/references/6
{"name":"https://github.com/systemd/systemd/commit/7ac3220213690e8a8d6d2a6e81e43bd1dce01d69","tags":["x_refsource_MISC"],"url":"https://github.com/systemd/systemd/commit/7ac3220213690e8a8d6d2a6e81e43bd1dce01d69"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/references/7
{"name":"https://github.com/systemd/systemd/commit/80acea4ef80a4bb78560ed970c34952299b890d6","tags":["x_refsource_MISC"],"url":"https://github.com/systemd/systemd/commit/80acea4ef80a4bb78560ed970c34952299b890d6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/references/8
{"name":"https://github.com/systemd/systemd/commit/b5fd14693057e5f2c9b4a49603be64ec3608ff6c","tags":["x_refsource_MISC"],"url":"https://github.com/systemd/systemd/commit/b5fd14693057e5f2c9b4a49603be64ec3608ff6c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/references/9
{"name":"https://github.com/systemd/systemd/commit/efa6ba2ab625aaa160ac435a09e6482fc63bdbe8","tags":["x_refsource_MISC"],"url":"https://github.com/systemd/systemd/commit/efa6ba2ab625aaa160ac435a09e6482fc63bdbe8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/references/10
{"name":"https://github.com/systemd/systemd/security/advisories/GHSA-gx6q-6f99-m764","tags":["x_refsource_CONFIRM"],"url":"https://github.com/systemd/systemd/security/advisories/GHSA-gx6q-6f99-m764"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab1bb4c0e79472af7b8443a5757ba4c6d47e9105616df80ce3a16a3ffa96c4e · sha256:7a2ad00c6e38b3c5… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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