What is CVE-2008-3686?

CVE-2008-3686 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.9 out of 10. CVE-2008-3686 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2008-3686?

CVE-2008-3686 has a CVSS score of 4.9 out of 10, rated Medium severity. The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:C.

Is there a patch available for CVE-2008-3686?

No patch is currently available for CVE-2008-3686. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2008-3686 actively exploited?

CVE-2008-3686 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2008-3686

Medium

The rt6_fill_node function in net/ipv6/route.c in Linux kernel 2.6.26-rc4, 2.6.26.2, and possibly other 2.6.26 versions, allows local users to cause a denial of service (kernel OOPS) via IPv6 requests when no IPv6 input device is in use, which triggers a NULL pointer dereference.

Package Linux Kernel

Published 2008-08-14

Last modified 2026-04-23

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.9

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

None

Availability

Vector string

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

Weakness type

CWE-399

CVE-2008-3686 is classified as CWE-399

See CWE-399 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2008-3686 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lkml
http://lkml.org/lkml/2008/8/7/230

Exploit
Lkml
http://lkml.org/lkml/2008/8/8/7

Exploit
Secunia
http://secunia.com/advisories/31579

Vendor Advisory
Vupen
http://www.vupen.com/english/advisories/2008/2422

Vendor Advisory
Exchange
https://exchange.xforce.ibmcloud.com/vulnerabilities/44605
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5e0115e500fe9dd2ca11e6f92db9123204f1327a
Patch

Details

CVE ID CVE-2008-3686

Severity Medium

CVSS score 4.9 / 10

CVSS version 2.0

Published 2008-08-14

Modified 2026-04-23

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2008-3686?

CVE-2008-3686 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.9 out of 10 . CVE-2008-3686 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2008-3686?

CVE-2008-3686 has a CVSS score of 4.9 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:C.
Is there a patch available for CVE-2008-3686?

No patch is currently available for CVE-2008-3686. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2008-3686 actively exploited?

No — CVE-2008-3686 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.