What is CVE-2017-13686?

CVE-2017-13686 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2017-13686 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-13686?

CVE-2017-13686 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2017-13686?

No patch is currently available for CVE-2017-13686. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2017-13686 actively exploited?

CVE-2017-13686 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2017-13686

High

net/ipv4/route.c in the Linux kernel 4.13-rc1 through 4.13-rc6 is too late to check for a NULL fi field when RTM_F_FIB_MATCH is set, which allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via crafted system calls. NOTE: this does not affect any stable release.

Package Linux Kernel

Published 2017-08-24

Last modified 2026-05-13

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-476

CVE-2017-13686 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2017-13686 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bc3aae2bbac46dd894c89db5d5e98f7f0ef9e205
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/bc3aae2bbac46dd894c89db5d5e98f7f0ef9e205
Patch

Details

CVE ID CVE-2017-13686

Severity High

CVSS score 7.8 / 10

CVSS version 3.0

Published 2017-08-24

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-13686?

CVE-2017-13686 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2017-13686 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-13686?

CVE-2017-13686 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2017-13686?

No patch is currently available for CVE-2017-13686. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2017-13686 actively exploited?

No — CVE-2017-13686 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. View CWE-476 on MITRE CWE →