What is CVE-2009-3547?

CVE-2009-3547 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10, classified as a Race Condition flaw (CWE-362). CVE-2009-3547 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2009-3547?

CVE-2009-3547 has a CVSS score of 7.0 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2009-3547?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2009-3547 patch availability.

Is CVE-2009-3547 actively exploited?

CVE-2009-3547 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/362.html

CVE-2009-3547

High

Multiple race conditions in fs/pipe.c in the Linux kernel before 2.6.32-rc6 allow local users to cause a denial of service (NULL pointer dereference and system crash) or gain privileges by attempting to open an anonymous pipe via a /proc/*/fd/ pathname.

Package Linux Kernel

Published 2009-11-04

Last modified 2026-04-23

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.0

out of 10

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-362

CVE-2009-3547 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

References

29 total

Lkml
http://lkml.org/lkml/2009/10/14/184

Exploit Mailing List
Securityfocus
http://www.securityfocus.com/bid/36901

Broken Link Exploit Third Party Advisory VDB Entry
Lkml
http://lkml.org/lkml/2009/10/21/42

Mailing List Patch
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=530490

Issue Tracking Patch Third Party Advisory
Kernel Git
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ad3960243e55320d74195fb85c975e0a8cc4466c

Broken Link

Showing 5 of 29 references View all on NVD

Details

CVE ID CVE-2009-3547

Severity High

CVSS score 7.0 / 10

CVSS version 3.1

Published 2009-11-04

Modified 2026-04-23

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2009-3547?

CVE-2009-3547 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10 , classified as a Race Condition flaw (CWE-362) . CVE-2009-3547 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2009-3547?

CVE-2009-3547 has a CVSS score of 7.0 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2009-3547?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2009-3547 patch availability.
Is CVE-2009-3547 actively exploited?

No. CVE-2009-3547 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.