What is CVE-2004-2536?

CVE-2004-2536 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10. CVE-2004-2536 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2004-2536?

CVE-2004-2536 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-2004-2536?

No patch is currently available for CVE-2004-2536. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2004-2536 actively exploited?

CVE-2004-2536 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2004-2536

High

The exit_thread function (process.c) in Linux kernel 2.6 through 2.6.5 does not invalidate the per-TSS io_bitmap pointers if a process obtains IO access permissions from the ioperm function but does not drop those permissions when it exits, which allows other processes to access the per-TSS pointers, access restricted memory locations, and possibly gain privileges.

Package Linux Kernel

Published 2004-12-31

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-2004-2536 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Secunia
http://secunia.com/advisories/11577

Vendor Advisory
Kernel.org
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.6
Osvdb
http://www.osvdb.org/5997
Securityfocus
http://www.securityfocus.com/bid/10302
Ussg
http://www.ussg.iu.edu/hypermail/linux/kernel/0405.0/1265.html
Exchange
https://exchange.xforce.ibmcloud.com/vulnerabilities/16106
Kernel patch commit
http://www.ussg.iu.edu/hypermail/linux/kernel/0405.0/1242.html
Patch

Details

CVE ID CVE-2004-2536

Severity High

CVSS score 7.5 / 10

CVSS version 2.0

Published 2004-12-31

Modified 2026-04-16

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2004-2536?

CVE-2004-2536 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 . CVE-2004-2536 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2004-2536?

CVE-2004-2536 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-2004-2536?

No patch is currently available for CVE-2004-2536. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2004-2536 actively exploited?

No — CVE-2004-2536 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.