What is CVE-2009-4271?

CVE-2009-4271 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10. CVE-2009-4271 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2009-4271?

CVE-2009-4271 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is AV:L/AC:M/Au:N/C:N/I:N/A:C.

Is there a patch available for CVE-2009-4271?

No patch is currently available for CVE-2009-4271. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2009-4271 actively exploited?

CVE-2009-4271 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2009-4271

Medium

The Linux kernel 2.6.9 through 2.6.17 on the x86_64 and amd64 platforms allows local users to cause a denial of service (panic) via a 32-bit application that calls mprotect on its Virtual Dynamic Shared Object (VDSO) page and then triggers a segmentation fault.

Package Linux Kernel

Published 2010-03-19

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

None

Integrity

None

Availability

Vector string

AV:L/AC:M/Au:N/C:N/I:N/A:C

References

The following references provide additional information about CVE-2009-4271 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Details

CVE ID CVE-2009-4271

Severity Medium

CVSS score 4.7 / 10

CVSS version 2.0

Published 2010-03-19

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2009-4271?

CVE-2009-4271 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 . CVE-2009-4271 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2009-4271?

CVE-2009-4271 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:M/Au:N/C:N/I:N/A:C.
Is there a patch available for CVE-2009-4271?

No patch is currently available for CVE-2009-4271. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2009-4271 actively exploited?

No — CVE-2009-4271 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.