CVE-2016-9919

Name: CVE-2016-9919
Creator: NVD / NIST
Published: 2016-12-08T17:59:03.867+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 5.67%

Last modified Jun 17, 2026

CVE-2016-9919 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The icmp6_send function in net/ipv6/icmp.c in the Linux kernel through 4.8.12 omits a certain check of the dst data structure, which allows remote attackers to cause a denial of service (panic) via a fragmented IPv6 packet.. EPSS estimates a 5.67% chance of exploitation in the next 30 days.

Description

The icmp6_send function in net/ipv6/icmp.c in the Linux kernel through 4.8.12 omits a certain check of the dst data structure, which allows remote attackers to cause a denial of service (panic) via a fragmented IPv6 packet.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

5.67%

92.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	>= 4.8.10, < 4.9	—
Linux	Linux Kernel	4.4.223	—
Linux	Linux Kernel	4.9	Rc6

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2Issue Tracking, Patch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/12/08/15Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/94824Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2Issue Tracking, Patch, Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2Issue Tracking, Patch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/12/08/15Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/94824Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Dec 8, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9919?

How severe is CVE-2016-9919?

CVE-2016-9919 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 5.67% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9919?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9919?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST