CVE-2016-4450

Name: CVE-2016-4450
Creator: NVD / NIST
Published: 2016-06-07T14:06:14.2+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 16.38%

Last modified Jun 17, 2026

CVE-2016-4450 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. os/unix/ngx_files.c in nginx before 1.10.1 and 1.11.x before 1.11.1 allows remote attackers to cause a denial of service (NULL pointer dereference and worker process crash) via a crafted request, involving writing a client request body to a temporary file.. EPSS estimates a 16.38% chance of exploitation in the next 30 days.

Description

os/unix/ngx_files.c in nginx before 1.10.1 and 1.11.x before 1.11.1 allows remote attackers to cause a denial of service (NULL pointer dereference and worker process crash) via a crafted request, involving writing a client request body to a temporary file.

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

16.38%

96.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	15.10
Canonical	Ubuntu Linux	16.04
F5	Nginx	>= 1.3.9, < 1.10.1
F5	Nginx	1.11.0
Debian	Debian Linux	8.0

References

http://mailman.nginx.org/pipermail/nginx-announce/2016/000179.htmlVendor Advisory
http://www.debian.org/security/2016/dsa-3592Third Party Advisory
http://www.securityfocus.com/bid/90967Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036019Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2991-1Third Party Advisory
https://access.redhat.com/errata/RHSA-2016:1425Third Party Advisory
https://security.gentoo.org/glsa/201606-06Third Party Advisory
http://mailman.nginx.org/pipermail/nginx-announce/2016/000179.htmlVendor Advisory
http://www.debian.org/security/2016/dsa-3592Third Party Advisory
http://www.securityfocus.com/bid/90967Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036019Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2991-1Third Party Advisory
https://access.redhat.com/errata/RHSA-2016:1425Third Party Advisory
https://security.gentoo.org/glsa/201606-06Third Party Advisory

Timeline

Published: Jun 7, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-4450?

How severe is CVE-2016-4450?

CVE-2016-4450 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 16.38% probability of exploitation in the next 30 days.

How do I fix CVE-2016-4450?

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-2016-4450?

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

Scan your code now

Source: NVD / NIST