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CVE-2006-6921

Unspecified versions of the Linux kernel allow local users to cause a denial of service ...

2.1 LowFix available

CVE-2006-6921 is a low vulnerability (CVSS 2.1) in Linux Kernel, published January 12, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.48%, the 41st percentile. Fixed in kernel 0:2.6.9-55.0.12.EL.

Unspecified versions of the Linux kernel allow local users to cause a denial of service (unrecoverable zombie process) via a program with certain instructions that prevent init from properly reaping a child whose parent has died.

Exploit likelihood

0.48%Down 0.8 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 2.1

Unspecified versions of the Linux kernel allow local users to cause a denial of service (unrecoverable zombie process) via a program with certain instructions that prevent init from properly reaping a child whose parent has died.

Record
CVE-2006-6921
CVSS 2.0
2.1 LowAV:L/AC:L/Au:N/C:N/I:N/A:P
Updated
2026-11-02
CVE List No score

Unspecified versions of the Linux kernel allow local users to cause a denial of service (unrecoverable zombie process) via a program with certain instructions that prevent init from properly reaping a child whose parent has died.

Record
CVE-2006-6921
Updated
2026-11-02
EUVDEUVD-2006-6904 No score

Unspecified versions of the Linux kernel allow local users to cause a denial of service (unrecoverable zombie process) via a program with certain instructions that prevent init from properly reaping a child whose parent has died.

Record
EUVD-2006-6904
Updated
2026-11-03
GitHub AdvisoriesGHSA-8v8v-cw2c-7v57 No score

Unspecified versions of the Linux kernel allow local users to cause a denial of service ...

Unspecified versions of the Linux kernel allow local users to cause a denial of service (unrecoverable zombie process) via a program with certain instructions that prevent init from properly reaping a child whose parent has died.

Record
GHSA-8v8v-cw2c-7v57
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
kernel
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-devel
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-doc
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
Show 71 moreShow less
Affected packages
PackageAffectedFixed
kernel-xenU
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU-devel
Red Hat:enterprise_linux:4::as
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-devel
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-doc
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU-devel
Red Hat:enterprise_linux:4::desktop
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-devel
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-doc
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU-devel
Red Hat:enterprise_linux:4::es
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-debuginfo
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-devel
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-doc
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-hugemem-devel
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-largesmp-devel
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-smp-devel
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel-xenU-devel
Red Hat:enterprise_linux:4::ws
 before 0:2.6.9-55.0.12.EL
0:2.6.9-55.0.12.EL
kernel
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-PAE
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-PAE-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-PAE-devel
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-debug
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-debug-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-debug-devel
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-debuginfo-common
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-devel
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-doc
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-headers
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-xen
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-xen-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-xen-devel
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-PAE
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-PAE-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-PAE-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-debug
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-debug-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-debug-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-debuginfo-common
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-doc
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-headers
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-kdump
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-kdump-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-kdump-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-xen
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-xen-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5
kernel-xen-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-53.1.14.el5
0:2.6.18-53.1.14.el5

History

History
WhenChangedSources
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

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