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. 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?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2006-1856 patch availability.

Is CVE-2006-1856 actively exploited?

CVE-2006-1856 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

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

16 total

Lists
http://lists.jammed.com/linux-security-module/2005/09/0019.html
Secunia
http://secunia.com/advisories/20237
Secunia
http://secunia.com/advisories/20716
Secunia
http://secunia.com/advisories/21045
Secunia
http://secunia.com/advisories/21745

Showing 5 of 16 references View all on NVD

Details

CVE ID CVE-2006-1856

Severity High

CVSS score 7.5 / 10

CVSS version 2.0

Published 2006-05-19

Modified 2026-04-16

KEV No

Patch Awaiting data

Package linux

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?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2006-1856 patch availability.
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.