CVE-2006-1856

High

Certain modifications to the Linux kernel 2.6.16 and earlier do not add the appropriate Linux Security Modules (LSM) file_permission hooks to the (1) readv and (2) writev functions, which might allow attackers to bypass intended access restrictions.

Package Linux Kernel
Published 2006-05-19
Last modified 2026-04-16
CVSS version 2.0
Patch available
Awaiting data

CVSS 2.0 score

7.5

out of 10
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
User Interaction
Scope
Confidentiality
Low
Integrity
Availability
Vector string
AV:N/AC:L/Au:N/C:P/I:P/A:P

References

The following references provide additional information about CVE-2006-1856 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2006-1856?

    CVE-2006-1856 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 . CVE-2006-1856 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2006-1856?

    CVE-2006-1856 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 2.0). The vector string is AV:N/AC:L/Au:N/C:P/I:P/A:P .

  • Is there a patch available for CVE-2006-1856?

    No patch is currently available for CVE-2006-1856. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2006-1856 actively exploited?

    No — CVE-2006-1856 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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