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systemd: systemd: Arbitrary code execution or Denial of Service via spurious IPC API call data

🗓️ 04 Aug 2026 12:04:25Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 15 Views

Unprivileged IPC data in systemd can trigger code execution or DoS; v249 and earlier escalate.

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ATTACKERKB		CVE-2026-29111
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nessus
Tenable Nessus		AlmaLinux 10 : systemd (ALSA-2026:13651)
6 May 202600:00
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Tenable Nessus		AlmaLinux 9 : systemd (ALSA-2026:13677)
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Tenable Nessus		Debian dla-4533 : libnss-myhostname - security update
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.8i686systemd239-74.el8_8.7systemd-239-74.el8_8.7.i686.rpm
Red Hat Enterprise Linux8.8ppc64lesystemd239-74.el8_8.7systemd-239-74.el8_8.7.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64systemd239-74.el8_8.7systemd-239-74.el8_8.7.x86_64.rpm
Red Hat Enterprise Linux8.8i686systemd-container239-74.el8_8.7systemd-container-239-74.el8_8.7.i686.rpm
Red Hat Enterprise Linux8.8ppc64lesystemd-container239-74.el8_8.7systemd-container-239-74.el8_8.7.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64systemd-container239-74.el8_8.7systemd-container-239-74.el8_8.7.x86_64.rpm
Red Hat Enterprise Linux8.8i686systemd-container-debuginfo239-74.el8_8.7systemd-container-debuginfo-239-74.el8_8.7.i686.rpm
Red Hat Enterprise Linux8.8ppc64lesystemd-container-debuginfo239-74.el8_8.7systemd-container-debuginfo-239-74.el8_8.7.ppc64le.rpm
Red Hat Enterprise Linux8.8x86_64systemd-container-debuginfo239-74.el8_8.7systemd-container-debuginfo-239-74.el8_8.7.x86_64.rpm
Red Hat Enterprise Linux8.8i686systemd-debuginfo239-74.el8_8.7systemd-debuginfo-239-74.el8_8.7.i686.rpm
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SourceLink
accesswww.access.redhat.com/security/cve/CVE-2026-29111
bugzillawww.bugzilla.redhat.com/show_bug.cgi
githubwww.github.com/systemd/systemd/commit/1d22f706bd04f45f8422e17fbde3f56ece17758a
githubwww.github.com/systemd/systemd/commit/20021e7686426052e3a7505425d7e12085feb2a6
githubwww.github.com/systemd/systemd/commit/21167006574d6b83813c7596759b474f56562412
githubwww.github.com/systemd/systemd/commit/3cee294fe8cf4fa0eff933ab21416d099942cabd
githubwww.github.com/systemd/systemd/commit/42aee39107fbdd7db1ccd402a2151822b2805e9f
githubwww.github.com/systemd/systemd/commit/54588d2dedff54bfb6036670820650e4ea74628f
githubwww.github.com/systemd/systemd/commit/7ac3220213690e8a8d6d2a6e81e43bd1dce01d69
githubwww.github.com/systemd/systemd/commit/80acea4ef80a4bb78560ed970c34952299b890d6
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20 Aug 2026 20:45Current
7.2High risk
Vulners AI Score7.2
CVSS 3.15.5
EPSS0.00121
SSVC
CWE-1287
systemd vulnerabilityunprivileged userinterprocess communication dataspurious datastack overwritecode executionprivilege escalationdenial of servicesystemd version 249systemd version 250
15